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<h3>
Simon Peyton Jones pushed to branch wip/T17923
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4>
Commits:
</h4>
<ul>
<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ae203c70bbaec128264fa4a25e4af3b1685843a">8ae203c7</a></strong>
<div>
<span>by Simon Peyton Jones</span>
<i>at 2020-03-25T13:48:00+00:00</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Significant refactor of Lint
This refactoring of Lint was triggered by #17923, which is
fixed by this patch.
The main change is this. Instead of
lintType :: Type -> LintM LintedKind
we now have
lintType :: Type -> LintM LintedType
Previously, all of typeKind was effectively duplicate in lintType.
Moreover, since we have an ambient substitution, we still had to
apply the substition here and there, sometimes more than once. It
was all very tricky, in the end, and made my head hurt.
Now, lintType returns a fully linted type, with all substitutions
performed on it. This is much simpler.
The same thing is needed for Coercions. Instead of
lintCoercion :: OutCoercion
-> LintM (LintedKind, LintedKind,
LintedType, LintedType, Role)
we now have
lintCoercion :: Coercion -> LintM LintedCoercion
Much simpler! The code is shorter and less bug-prone.
There are a lot of knock on effects. But life is now better.
</pre>
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<h4>4 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#36a42448a83a9d1f6df8475f03ead2eed199dd8e">
compiler/GHC/Core/Lint.hs
</a>
</li>
<li class="file-stats">
<a href="#84c9d3ba34173297e7d7747e02caa2e004b164fc">
compiler/GHC/Core/Type.hs
</a>
</li>
<li class="file-stats">
<a href="#0e0c71e4cbf58a235b423d67f0a1f3f872c35138">
<span class="new-file">
+
testsuite/tests/indexed-types/should_compile/T17923.hs
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</a>
</li>
<li class="file-stats">
<a href="#58b9bc2ffb1c7d7b545e6aada524a5d53266e95e">
testsuite/tests/indexed-types/should_compile/all.T
</a>
</li>
</ul>
<h4>Changes:</h4>
<li id="36a42448a83a9d1f6df8475f03ead2eed199dd8e">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ae203c70bbaec128264fa4a25e4af3b1685843a#36a42448a83a9d1f6df8475f03ead2eed199dd8e"><strong>compiler/GHC/Core/Lint.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -8,7 +8,7 @@ See Note [Core Lint guarantee].</td>
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<pre style="margin: 0;"> <span id="LC8" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC10" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE CPP #-}</span></span>
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<pre style="margin: 0;">-<span id="LC11" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE DeriveFunctor #-}</span></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE <span class="idiff left right">ScopedTypeVariables, </span>DeriveFunctor #-}</span></span>
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<pre style="margin: 0;"> <span id="LC12" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC13" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">GHC.Core.Lint</span> <span class="p">(</span></span>
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<pre style="margin: 0;"> <span id="LC14" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">lintCoreBindings</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">lintUnfolding</span><span class="p">,</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -33,7 +33,6 @@ import GHC.Core.Op.Monad</td>
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<pre style="margin: 0;"> <span id="LC33" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Bag</span></span>
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<pre style="margin: 0;"> <span id="LC34" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Literal</span></span>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Core.DataCon</span></span>
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<pre style="margin: 0;">-<span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">TysWiredIn</span></span>
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">TysPrim</span></span>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">TcType</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">isFloatingTy</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC38" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Var</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="461" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="460" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -461,14 +460,17 @@ lintCoreBindings :: DynFlags -> CoreToDo -> [Var] -> CoreProgram -> (Bag MsgDoc,</td>
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<pre style="margin: 0;"> <span id="LC460" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreBindings</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">pass</span> <span class="n" style="color: #333;">local_in_scope</span> <span class="n" style="color: #333;">binds</span></span>
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<pre style="margin: 0;"> <span id="LC461" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">initL</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">flags</span> <span class="n" style="color: #333;">local_in_scope</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;"> <span id="LC462" class="line" lang="haskell"> <span class="n" style="color: #333;">addLoc</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelBindings</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC464" class="line" lang="haskell"> <span class="n" style="color: #333;">lintLetBndrs</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevel</span> <span class="n" style="color: #333;">binders</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC465" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Put all the top-level binders in scope at the start</span></span>
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<pre style="margin: 0;">-<span id="LC466" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- This is because transformation rules can bring something</span></span>
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<pre style="margin: 0;">-<span id="LC467" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- into use 'unexpectedly'</span></span>
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<pre style="margin: 0;"> <span id="LC463" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">dupVars</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC464" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">ext_dups</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">dupExtVars</span> <span class="n" style="color: #333;">ext_dups</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC470" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lint_bind</span> <span class="n" style="color: #333;">binds</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC465" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRecBindings</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevel</span> <span class="n" style="color: #333;">all_pairs</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC466" class="line" lang="haskell"> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC467" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC468" class="line" lang="haskell"> <span class="n" style="color: #333;">all_pairs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">flattenBinds</span> <span class="n" style="color: #333;">binds</span></span>
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<pre style="margin: 0;">+<span id="LC469" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Put all the top-level binders in scope at the start</span></span>
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<pre style="margin: 0;">+<span id="LC470" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- This is because transformation rules can bring something</span></span>
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<pre style="margin: 0;">+<span id="LC471" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- into use 'unexpectedly'; see Note [Glomming] in OccurAnal</span></span>
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<pre style="margin: 0;">+<span id="LC472" class="line" lang="haskell"> <span class="n" style="color: #333;">binders</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">fst</span> <span class="n" style="color: #333;">all_pairs</span></span>
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<pre style="margin: 0;">+<span id="LC473" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC474" class="line" lang="haskell"> <span class="n" style="color: #333;">flags</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">defaultLintFlags</span></span>
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<pre style="margin: 0;"> <span id="LC475" class="line" lang="haskell"> <span class="p">{</span> <span class="n" style="color: #333;">lf_check_global_ids</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">check_globals</span></span>
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<pre style="margin: 0;"> <span id="LC476" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">lf_check_inline_loop_breakers</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">check_lbs</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -494,7 +496,6 @@ lintCoreBindings dflags pass local_in_scope binds</td>
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<pre style="margin: 0;"> <span id="LC496" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">CorePrep</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AllowAtTopLevel</span></span>
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<pre style="margin: 0;"> <span id="LC497" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">AllowAnywhere</span></span>
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<pre style="margin: 0;"> <span id="LC498" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC497" class="line" lang="haskell"> <span class="n" style="color: #333;">binders</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">bindersOfBinds</span> <span class="n" style="color: #333;">binds</span></span>
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<pre style="margin: 0;"> <span id="LC499" class="line" lang="haskell"> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">removeDups</span> <span class="n" style="color: #333;">compare</span> <span class="n" style="color: #333;">binders</span></span>
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<pre style="margin: 0;"> <span id="LC500" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC501" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- dups_ext checks for names with different uniques</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -509,11 +510,6 @@ lintCoreBindings dflags pass local_in_scope binds</td>
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<pre style="margin: 0;"> <span id="LC510" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">compare</span> <span class="p">(</span><span class="n" style="color: #333;">m1</span><span class="p">,</span> <span class="n" style="color: #333;">nameOccName</span> <span class="n" style="color: #333;">n1</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">m2</span><span class="p">,</span> <span class="n" style="color: #333;">nameOccName</span> <span class="n" style="color: #333;">n2</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC511" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LT</span></span>
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512
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<pre style="margin: 0;"> <span id="LC512" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC512" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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513
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<pre style="margin: 0;">-<span id="LC513" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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<pre style="margin: 0;">-<span id="LC514" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_bind</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rec</span> <span class="n" style="color: #333;">prs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mapM_</span> <span class="p">(</span><span class="n" style="color: #333;">lintSingleBinding</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevel</span> <span class="kt" style="color: #458; font-weight: 600;">Recursive</span><span class="p">)</span> <span class="n" style="color: #333;">prs</span></span>
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<pre style="margin: 0;">-<span id="LC515" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_bind</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NonRec</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintSingleBinding</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevel</span> <span class="kt" style="color: #458; font-weight: 600;">NonRecursive</span> <span class="p">(</span><span class="n" style="color: #333;">bndr</span><span class="p">,</span><span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC516" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC513" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{-</span></span>
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<pre style="margin: 0;"> <span id="LC514" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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<pre style="margin: 0;"> <span id="LC515" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -576,28 +572,32 @@ lintExpr dflags vars expr</td>
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<pre style="margin: 0;"> <span id="LC572" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Check a core binding, returning the list of variables bound.</span></span>
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<pre style="margin: 0;"> <span id="LC573" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;"> <span id="LC574" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC579" class="line" lang="haskell"><span class="n" style="color: #333;">lintSingleBinding</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">RecFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">-<span id="LC580" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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<pre style="margin: 0;">-<span id="LC581" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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<pre style="margin: 0;">-<span id="LC582" class="line" lang="haskell"><span class="n" style="color: #333;">lintSingleBinding</span> <span class="n" style="color: #333;">top_lvl_flag</span> <span class="n" style="color: #333;">rec_flag</span> <span class="p">(</span><span class="n" style="color: #333;">binder</span><span class="p">,</span><span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC583" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RhsOf</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC584" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check the rhs</span></span>
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<pre style="margin: 0;">-<span id="LC585" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintRhs</span> <span class="n" style="color: #333;">binder</span> <span class="n" style="color: #333;">rhs</span></span>
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<pre style="margin: 0;">-<span id="LC586" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">binder_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">applySubstTy</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC587" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">binder_ty</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">mkRhsMsg</span> <span class="n" style="color: #333;">binder</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"RHS"</span><span class="p">)</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC575" class="line" lang="haskell"><span class="n" style="color: #333;">lintRecBindings</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[(</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span><span class="p">)]</span></span>
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<pre style="margin: 0;">+<span id="LC576" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC577" class="line" lang="haskell"><span class="n" style="color: #333;">lintRecBindings</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">pairs</span> <span class="n" style="color: #333;">thing_inside</span></span>
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<pre style="margin: 0;">+<span id="LC578" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintIdBndrs</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">bndrs</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">bndrs'</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">+<span id="LC579" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">zipWithM_</span> <span class="n" style="color: #333;">lint_pair</span> <span class="n" style="color: #333;">bndrs'</span> <span class="n" style="color: #333;">rhss</span></span>
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<pre style="margin: 0;">+<span id="LC580" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">thing_inside</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC581" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC582" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bndrs</span><span class="p">,</span> <span class="n" style="color: #333;">rhss</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unzip</span> <span class="n" style="color: #333;">pairs</span></span>
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<pre style="margin: 0;">+<span id="LC583" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_pair</span> <span class="n" style="color: #333;">bndr'</span> <span class="n" style="color: #333;">rhs</span></span>
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<pre style="margin: 0;">+<span id="LC584" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RhsOf</span> <span class="n" style="color: #333;">bndr'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC585" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">rhs_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintRhs</span> <span class="n" style="color: #333;">bndr'</span> <span class="n" style="color: #333;">rhs</span> <span class="c1" style="color: #998; font-style: italic;">-- Check the rhs</span></span>
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<pre style="margin: 0;">+<span id="LC586" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintLetBind</span> <span class="n" style="color: #333;">top_lvl</span> <span class="kt" style="color: #458; font-weight: 600;">Recursive</span> <span class="n" style="color: #333;">bndr'</span> <span class="n" style="color: #333;">rhs</span> <span class="n" style="color: #333;">rhs_ty</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC587" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC588" class="line" lang="haskell"><span class="n" style="color: #333;">lintLetBind</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">RecFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedId</span></span>
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<pre style="margin: 0;">+<span id="LC589" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC590" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Binder's type, and the RHS, have already been linted</span></span>
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<pre style="margin: 0;">+<span id="LC591" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- This function checks other invariants</span></span>
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<pre style="margin: 0;">+<span id="LC592" class="line" lang="haskell"><span class="n" style="color: #333;">lintLetBind</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">rec_flag</span> <span class="n" style="color: #333;">binder</span> <span class="n" style="color: #333;">rhs</span> <span class="n" style="color: #333;">rhs_ty</span></span>
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<pre style="margin: 0;">+<span id="LC593" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">binder_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">binder</span></span>
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<pre style="margin: 0;">+<span id="LC594" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">binder_ty</span> <span class="n" style="color: #333;">rhs_ty</span> <span class="p">(</span><span class="n" style="color: #333;">mkRhsMsg</span> <span class="n" style="color: #333;">binder</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"RHS"</span><span class="p">)</span> <span class="n" style="color: #333;">rhs_ty</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC595" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC596" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- If the binding is for a CoVar, the RHS should be (Coercion co)</span></span>
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<pre style="margin: 0;"> <span id="LC597" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Core type and coercion invariant] in GHC.Core</span></span>
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<pre style="margin: 0;"> <span id="LC598" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">isCoArg</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC599" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkLetErr</span> <span class="n" style="color: #333;">binder</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC600" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC594" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that it's not levity-polymorphic</span></span>
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<pre style="margin: 0;">-<span id="LC595" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Do this first, because otherwise isUnliftedType panics</span></span>
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<pre style="margin: 0;">-<span id="LC596" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Annoyingly, this duplicates the test in lintIdBdr,</span></span>
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<pre style="margin: 0;">-<span id="LC597" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- because for non-rec lets we call lintSingleBinding first</span></span>
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<pre style="margin: 0;">-<span id="LC598" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">binder</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTypeLevPoly</span> <span class="n" style="color: #333;">binder_ty</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC599" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">badBndrTyMsg</span> <span class="n" style="color: #333;">binder</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"levity-polymorphic"</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC600" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC601" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check the let/app invariant</span></span>
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602
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602
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<pre style="margin: 0;"> <span id="LC602" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Core let/app invariant] in GHC.Core</span></span>
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<pre style="margin: 0;"> <span id="LC603" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span> <span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">binder</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -610,14 +610,14 @@ lintSingleBinding top_lvl_flag rec_flag (binder,rhs)</td>
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<pre style="margin: 0;"> <span id="LC610" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- demanded. Primitive string literals are exempt as there is no</span></span>
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<pre style="margin: 0;"> <span id="LC611" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- computation to perform, see Note [Core top-level string literals].</span></span>
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<pre style="margin: 0;"> <span id="LC612" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isStrictId</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC613" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="p">(</span><span class="n" style="color: #333;">isNonRec</span> <span class="n" style="color: #333;">rec_flag</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTopLevel</span> <span class="n" style="color: #333;">top_lvl<span class="idiff left right">_flag</span></span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC613" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="p">(</span><span class="n" style="color: #333;">isNonRec</span> <span class="n" style="color: #333;">rec_flag</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTopLevel</span> <span class="n" style="color: #333;">top_lvl</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC614" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">exprIsTickedString</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC615" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkStrictMsg</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC616" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC617" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that if the binder is at the top level and has type Addr#,</span></span>
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<pre style="margin: 0;"> <span id="LC618" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- that it is a string literal, see</span></span>
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<pre style="margin: 0;"> <span id="LC619" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Note [Core top-level string literals].</span></span>
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<pre style="margin: 0;">-<span id="LC620" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTopLevel</span> <span class="n" style="color: #333;">top_lvl<span class="idiff left right">_flag</span></span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">binder_ty</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">addrPrimTy</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC620" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTopLevel</span> <span class="n" style="color: #333;">top_lvl</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">binder_ty</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">addrPrimTy</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC621" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">exprIsTickedString</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC622" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkTopNonLitStrMsg</span> <span class="n" style="color: #333;">binder</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC623" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -674,7 +674,9 @@ lintSingleBinding top_lvl_flag rec_flag (binder,rhs)</td>
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<pre style="margin: 0;"> <span id="LC674" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- join point.</span></span>
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<pre style="margin: 0;"> <span id="LC675" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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<pre style="margin: 0;"> <span id="LC676" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Checking StaticPtrs].</span></span>
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<pre style="margin: 0;">-<span id="LC677" class="line" lang="haskell"><span class="n" style="color: #333;">lintRhs</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span></span>
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<pre style="margin: 0;">+<span id="LC677" class="line" lang="haskell"><span class="n" style="color: #333;">lintRhs</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span></span>
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<pre style="margin: 0;">+<span id="LC678" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- NB: the Id can be Linted or not -- it's only used for</span></span>
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<pre style="margin: 0;">+<span id="LC679" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- its OccInfo and join-pointer-hood</span></span>
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<pre style="margin: 0;"> <span id="LC680" class="line" lang="haskell"><span class="n" style="color: #333;">lintRhs</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span></span>
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<pre style="margin: 0;"> <span id="LC681" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">arity</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">isJoinId_maybe</span> <span class="n" style="color: #333;">bndr</span></span>
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<pre style="margin: 0;"> <span id="LC682" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lint_join_lams</span> <span class="n" style="color: #333;">arity</span> <span class="n" style="color: #333;">arity</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="n" style="color: #333;">rhs</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -761,13 +763,14 @@ hurts us here.</td>
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<pre style="margin: 0;"> <span id="LC763" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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<pre style="margin: 0;"> <span id="LC764" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;"> <span id="LC765" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC764" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- For OutType, OutKind, the substitution has been applied,</span></span>
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<pre style="margin: 0;">-<span id="LC765" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- but has not been linted yet</span></span>
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<pre style="margin: 0;">+<span id="LC766" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Linted things: substitution applied, and type is linted</span></span>
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<pre style="margin: 0;">+<span id="LC767" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>
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<pre style="margin: 0;">+<span id="LC768" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Kind</span></span>
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<pre style="margin: 0;">+<span id="LC769" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedCoercion</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span></span>
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<pre style="margin: 0;">+<span id="LC770" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedTyCoVar</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVar</span></span>
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<pre style="margin: 0;">+<span id="LC771" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedId</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span></span>
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<pre style="margin: 0;"> <span id="LC772" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC767" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Substitution applied, and type is linted</span></span>
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<pre style="margin: 0;">-<span id="LC768" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Kind</span></span>
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<pre style="margin: 0;">-<span id="LC769" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC770" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span></span>
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<pre style="margin: 0;">+<span id="LC773" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span></span>
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<pre style="margin: 0;"> <span id="LC774" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The returned type has the substitution from the monad</span></span>
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<pre style="margin: 0;"> <span id="LC775" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- already applied to it:</span></span>
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<pre style="margin: 0;"> <span id="LC776" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- lintCoreExpr e subst = exprType (subst e)</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -776,6 +779,7 @@ lintCoreExpr :: CoreExpr -> LintM OutType</td>
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<pre style="margin: 0;"> <span id="LC779" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC780" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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<pre style="margin: 0;"> <span id="LC781" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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<pre style="margin: 0;">+<span id="LC782" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC783" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC784" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintVarOcc</span> <span class="n" style="color: #333;">var</span> <span class="mi" style="color: #099;">0</span></span>
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<pre style="margin: 0;"> <span id="LC785" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -784,10 +788,11 @@ lintCoreExpr (Lit lit)</td>
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<pre style="margin: 0;"> <span id="LC788" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC789" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Cast</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC790" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">expr_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">markAllJoinsBad</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">expr</span></span>
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<pre style="margin: 0;">-<span id="LC787" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">applySubstCo</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">-<span id="LC788" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">from_ty</span><span class="p">,</span> <span class="n" style="color: #333;">to_ty</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co'</span></span>
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<pre style="margin: 0;">-<span id="LC789" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"target of cast"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC790" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co'</span> <span class="kt" style="color: #458; font-weight: 600;">Representational</span> <span class="n" style="color: #333;">r</span></span>
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<pre style="margin: 0;">+<span id="LC791" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">+<span id="LC792" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">from_ty</span> <span class="n" style="color: #333;">to_ty</span><span class="p">,</span> <span class="n" style="color: #333;">role</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKindRole</span> <span class="n" style="color: #333;">co'</span></span>
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<pre style="margin: 0;">+<span id="LC793" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueType</span> <span class="n" style="color: #333;">to_ty</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC794" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"target of cast"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC795" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co'</span> <span class="kt" style="color: #458; font-weight: 600;">Representational</span> <span class="n" style="color: #333;">role</span></span>
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796
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<pre style="margin: 0;"> <span id="LC796" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">from_ty</span> <span class="n" style="color: #333;">expr_ty</span> <span class="p">(</span><span class="n" style="color: #333;">mkCastErr</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">co'</span> <span class="n" style="color: #333;">from_ty</span> <span class="n" style="color: #333;">expr_ty</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC797" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">to_ty</span> <span class="p">}</span></span>
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798
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<pre style="margin: 0;"> <span id="LC798" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -809,7 +814,7 @@ lintCoreExpr (Tick tickish expr)</td>
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<pre style="margin: 0;"> <span id="LC814" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NonRec</span> <span class="n" style="color: #333;">tv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span> <span class="n" style="color: #333;">body</span><span class="p">)</span></span>
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815
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<pre style="margin: 0;"> <span id="LC815" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv</span></span>
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<pre style="margin: 0;"> <span id="LC816" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Linting type lets]</span></span>
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<pre style="margin: 0;">-<span id="LC812" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;"><span class="idiff left right">applySubstTy</span></span> <span class="n" style="color: #333;">ty</span></span>
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817
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<pre style="margin: 0;">+<span id="LC817" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;"><span class="idiff left right">lintType</span></span> <span class="n" style="color: #333;">ty</span></span>
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818
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<pre style="margin: 0;"> <span id="LC818" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintTyBndr</span> <span class="n" style="color: #333;">tv</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">tv'</span> <span class="o" style="font-weight: 600;">-></span></span>
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819
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<pre style="margin: 0;"> <span id="LC819" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RhsOf</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">lintTyKind</span> <span class="n" style="color: #333;">tv'</span> <span class="n" style="color: #333;">ty'</span></span>
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820
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<pre style="margin: 0;"> <span id="LC820" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Now extend the substitution so we</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -820,33 +825,34 @@ lintCoreExpr (Let (NonRec tv (Type ty)) body)</td>
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825
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<pre style="margin: 0;"> <span id="LC825" class="line" lang="haskell"></span>
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826
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<pre style="margin: 0;"> <span id="LC826" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NonRec</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="n" style="color: #333;">body</span><span class="p">)</span></span>
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827
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<pre style="margin: 0;"> <span id="LC827" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isId</span> <span class="n" style="color: #333;">bndr</span></span>
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<pre style="margin: 0;">-<span id="LC823" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintSingleBinding</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="kt" style="color: #458; font-weight: 600;">NonRecursive</span> <span class="p">(</span><span class="n" style="color: #333;">bndr</span><span class="p">,</span><span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>
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824
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<pre style="margin: 0;">-<span id="LC824" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BodyOfLetRec</span> <span class="p">[</span><span class="n" style="color: #333;">bndr</span><span class="p">])</span></span>
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825
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<pre style="margin: 0;">-<span id="LC825" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">lintBinder</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">bndr</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span></span>
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826
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<pre style="margin: 0;">-<span id="LC826" class="line" lang="haskell"> <span class="n" style="color: #333;">addGoodJoins</span> <span class="p">[</span><span class="n" style="color: #333;">bndr</span><span class="p">]</span> <span class="o" style="font-weight: 600;">$</span></span>
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827
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<pre style="margin: 0;">-<span id="LC827" class="line" lang="haskell"> <span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">body</span><span class="p">)</span> <span class="p">}</span></span>
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828
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<pre style="margin: 0;">+<span id="LC828" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- First Lint the RHS, before bringing the binder into scope</span></span>
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829
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<pre style="margin: 0;">+<span id="LC829" class="line" lang="haskell"> <span class="n" style="color: #333;">rhs_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintRhs</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span></span>
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830
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<pre style="margin: 0;">+<span id="LC830" class="line" lang="haskell"></span>
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831
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<pre style="margin: 0;">+<span id="LC831" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Now lint the binder</span></span>
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832
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<pre style="margin: 0;">+<span id="LC832" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintBinder</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">bndr</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">bndr'</span> <span class="o" style="font-weight: 600;">-></span></span>
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833
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<pre style="margin: 0;">+<span id="LC833" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintLetBind</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="kt" style="color: #458; font-weight: 600;">NonRecursive</span> <span class="n" style="color: #333;">bndr'</span> <span class="n" style="color: #333;">rhs</span> <span class="n" style="color: #333;">rhs_ty</span></span>
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834
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<pre style="margin: 0;">+<span id="LC834" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BodyOfLetRec</span> <span class="p">[</span><span class="n" style="color: #333;">bndr</span><span class="p">])</span> <span class="p">(</span><span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">body</span><span class="p">)</span> <span class="p">}</span> <span class="p">}</span></span>
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828
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835
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<pre style="margin: 0;"> <span id="LC835" class="line" lang="haskell"></span>
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829
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836
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<pre style="margin: 0;"> <span id="LC836" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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830
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837
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<pre style="margin: 0;"> <span id="LC837" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">mkLetErr</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="c1" style="color: #998; font-style: italic;">-- Not quite accurate</span></span>
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831
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838
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<pre style="margin: 0;"> <span id="LC838" class="line" lang="haskell"></span>
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832
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839
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<pre style="margin: 0;"> <span id="LC839" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">e</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rec</span> <span class="n" style="color: #333;">pairs</span><span class="p">)</span> <span class="n" style="color: #333;">body</span><span class="p">)</span></span>
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833
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<pre style="margin: 0;">-<span id="LC833" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintLetBndrs</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="n" style="color: #333;">bndrs</span> <span class="o" style="font-weight: 600;">$</span></span>
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834
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<pre style="margin: 0;">-<span id="LC834" class="line" lang="haskell"> <span class="n" style="color: #333;">addGoodJoins</span> <span class="n" style="color: #333;">bndrs</span> <span class="o" style="font-weight: 600;">$</span></span>
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835
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<pre style="margin: 0;">-<span id="LC835" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- Check that the list of pairs is non-empty</span></span>
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840
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<pre style="margin: 0;">+<span id="LC840" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- Check that the list of pairs is non-empty</span></span>
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<pre style="margin: 0;"> <span id="LC841" class="line" lang="haskell"> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">pairs</span><span class="p">))</span> <span class="p">(</span><span class="n" style="color: #333;">emptyRec</span> <span class="n" style="color: #333;">e</span><span class="p">)</span></span>
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842
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<pre style="margin: 0;"> <span id="LC842" class="line" lang="haskell"></span>
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843
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<pre style="margin: 0;"> <span id="LC843" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that there are no duplicated binders</span></span>
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<pre style="margin: 0;">+<span id="LC844" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">removeDups</span> <span class="n" style="color: #333;">compare</span> <span class="n" style="color: #333;">bndrs</span></span>
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<pre style="margin: 0;"> <span id="LC845" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">dupVars</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span></span>
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846
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<pre style="margin: 0;"> <span id="LC846" class="line" lang="haskell"></span>
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847
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<pre style="margin: 0;"> <span id="LC847" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that either all the binders are joins, or none</span></span>
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848
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<pre style="margin: 0;"> <span id="LC848" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">bndrs</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">all</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">isJoinId</span><span class="p">)</span> <span class="n" style="color: #333;">bndrs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC843" class="line" lang="haskell"> <span class="idiff left right"> </span><span class="n" style="color: #333;">mkInconsistentRecMsg</span> <span class="n" style="color: #333;">bndrs</span></span>
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<pre style="margin: 0;">+<span id="LC849" class="line" lang="haskell"> <span class="n" style="color: #333;">mkInconsistentRecMsg</span> <span class="n" style="color: #333;">bndrs</span></span>
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850
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<pre style="margin: 0;"> <span id="LC850" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC845" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">mapM_</span> <span class="p">(</span><span class="n" style="color: #333;">lintSingleBinding</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="kt" style="color: #458; font-weight: 600;">Recursive</span><span class="p">)</span> <span class="n" style="color: #333;">pairs</span></span>
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<pre style="margin: 0;">-<span id="LC846" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BodyOfLetRec</span> <span class="n" style="color: #333;">bndrs</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">body</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC851" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRecBindings</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="n" style="color: #333;">pairs</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC852" class="line" lang="haskell"> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BodyOfLetRec</span> <span class="n" style="color: #333;">bndrs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC853" class="line" lang="haskell"> <span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">body</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC854" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC855" class="line" lang="haskell"> <span class="n" style="color: #333;">bndrs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">fst</span> <span class="n" style="color: #333;">pairs</span></span>
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<pre style="margin: 0;">-<span id="LC849" class="line" lang="haskell"> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">dups</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">removeDups</span> <span class="n" style="color: #333;">compare</span> <span class="n" style="color: #333;">bndrs</span></span>
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<pre style="margin: 0;"> <span id="LC856" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC857" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">e</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">App</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC858" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">fun_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoreFun</span> <span class="n" style="color: #333;">fun</span> <span class="p">(</span><span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">args</span><span class="p">)</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -867,20 +873,27 @@ lintCoreExpr (Type ty)</td>
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<pre style="margin: 0;"> <span id="LC873" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Type found as expression"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC874" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC875" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreExpr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC870" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">ty1</span><span class="p">,</span> <span class="n" style="color: #333;">ty2</span><span class="p">,</span> <span class="n" style="color: #333;">role</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintInCo</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">-<span id="LC871" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">mkHeteroCoercionType</span> <span class="n" style="color: #333;">role</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC876" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InCo</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC877" class="line" lang="haskell"> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">+<span id="LC878" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">coercionType</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC879" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC880" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------------</span></span>
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<pre style="margin: 0;"> <span id="LC881" class="line" lang="haskell"><span class="n" style="color: #333;">lintVarOcc</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="c1" style="color: #998; font-style: italic;">-- Number of arguments (type or value) being passed</span></span>
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<pre style="margin: 0;">-<span id="LC875" class="line" lang="haskell"> <span class="idiff left"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- returns type of the *variable*</span></span>
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<pre style="margin: 0;">+<span id="LC882" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- returns type of the *variable*</span></span>
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<pre style="margin: 0;"> <span id="LC883" class="line" lang="haskell"><span class="n" style="color: #333;">lintVarOcc</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">nargs</span></span>
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<pre style="margin: 0;">-<span id="LC877" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">isNonCoVarId</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC884" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OccOf</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC885" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">isNonCoVarId</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC886" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non term variable"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC887" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See GHC.Core Note [Variable occurrences in Core]</span></span>
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<pre style="margin: 0;"> <span id="LC888" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC889" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that the type of the occurrence is the same</span></span>
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<pre style="margin: 0;">-<span id="LC882" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- as the type of the binding site</span></span>
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<pre style="margin: 0;">-<span id="LC883" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">applySubstTy</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC890" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- as the type of the binding site. We lint the type so that</span></span>
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<pre style="margin: 0;">+<span id="LC891" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- we apply the substitution. Actually this will get into trouble</span></span>
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<pre style="margin: 0;">+<span id="LC892" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- with /\a. \(x::Maybe a). /\a. ...(x::Maybe a)...</span></span>
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<pre style="margin: 0;">+<span id="LC893" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- The "::Maybe a" on the occurrence is referring to the /outer/ a.</span></span>
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<pre style="margin: 0;">+<span id="LC894" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- But this naive check will treat it like the inner one.</span></span>
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<pre style="margin: 0;">+<span id="LC895" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- This looks like a bug waiting to happen.</span></span>
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<pre style="margin: 0;">+<span id="LC896" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC897" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">var'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lookupIdInScope</span> <span class="n" style="color: #333;">var</span></span>
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<pre style="margin: 0;"> <span id="LC898" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var'</span></span>
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<pre style="margin: 0;"> <span id="LC899" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkBndrOccTypeMismatchMsg</span> <span class="n" style="color: #333;">var'</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">ty'</span> <span class="n" style="color: #333;">ty</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -898,8 +911,8 @@ lintVarOcc var nargs</td>
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<pre style="margin: 0;"> <span id="LC911" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var'</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC912" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC913" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreFun</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span></span>
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<pre style="margin: 0;">-<span id="LC901" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="c1" style="color: #998; font-style: italic;">-- Number of arguments (type or val) being passed</span></span>
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<pre style="margin: 0;">-<span id="LC902" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Returns type of the *function*</span></span>
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<pre style="margin: 0;">+<span id="LC914" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Int</span> <span class="idiff left right"> </span><span class="c1" style="color: #998; font-style: italic;">-- Number of arguments (type or val) being passed</span></span>
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<pre style="margin: 0;">+<span id="LC915" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Returns type of the *function*</span></span>
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916
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<pre style="margin: 0;"> <span id="LC916" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreFun</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="n" style="color: #333;">nargs</span></span>
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917
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<pre style="margin: 0;"> <span id="LC917" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintVarOcc</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">nargs</span></span>
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918
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<pre style="margin: 0;"> <span id="LC918" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -941,7 +954,9 @@ checkJoinOcc var n_args</td>
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941
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954
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<pre style="margin: 0;"> <span id="LC954" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">mb_join_arity_bndr</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lookupJoinId</span> <span class="n" style="color: #333;">var</span></span>
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942
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955
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<pre style="margin: 0;"> <span id="LC955" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">mb_join_arity_bndr</span> <span class="kr" style="font-weight: 600;">of</span> <span class="p">{</span></span>
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943
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956
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<pre style="margin: 0;"> <span id="LC956" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="c1" style="color: #998; font-style: italic;">-- Binder is not a join point</span></span>
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944
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<pre style="margin: 0;">-<span id="LC944" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">invalidJoinOcc</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="p">;</span></span>
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957
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<pre style="margin: 0;">+<span id="LC957" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">join_set</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getValidJoins</span></span>
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958
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<pre style="margin: 0;">+<span id="LC958" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"join set "</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">join_set</span> <span class="o" style="font-weight: 600;">$$</span></span>
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<pre style="margin: 0;">+<span id="LC959" class="line" lang="haskell"> <span class="n" style="color: #333;">invalidJoinOcc</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="p">}</span> <span class="p">;</span></span>
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960
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<pre style="margin: 0;"> <span id="LC960" class="line" lang="haskell"></span>
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946
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961
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<pre style="margin: 0;"> <span id="LC961" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">join_arity_bndr</span> <span class="o" style="font-weight: 600;">-></span></span>
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962
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<pre style="margin: 0;"> <span id="LC962" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1038,15 +1053,15 @@ subtype of the required type, as one would expect.</td>
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1053
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<pre style="margin: 0;"> <span id="LC1053" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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1039
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1054
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<pre style="margin: 0;"> <span id="LC1054" class="line" lang="haskell"></span>
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1055
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<pre style="margin: 0;"> <span id="LC1055" class="line" lang="haskell"></span>
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1041
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<pre style="margin: 0;">-<span id="LC1041" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArgs</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">CoreArg</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Out</span>Type</span></span>
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<pre style="margin: 0;">+<span id="LC1056" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArgs</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">CoreArg</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span></span>
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1042
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1057
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<pre style="margin: 0;"> <span id="LC1057" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArgs</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">args</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldM</span> <span class="n" style="color: #333;">lintCoreArg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">args</span></span>
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1043
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1058
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<pre style="margin: 0;"> <span id="LC1058" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1044" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">CoreArg</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Out</span>Type</span></span>
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<pre style="margin: 0;">+<span id="LC1059" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">CoreArg</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span></span>
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1060
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<pre style="margin: 0;"> <span id="LC1060" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="n" style="color: #333;">arg_ty</span><span class="p">)</span></span>
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1046
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1061
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<pre style="margin: 0;"> <span id="LC1061" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">arg_ty</span><span class="p">))</span></span>
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1047
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1062
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<pre style="margin: 0;"> <span id="LC1062" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Unnecessary coercion-to-type injection:"</span></span>
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1048
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1063
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<pre style="margin: 0;"> <span id="LC1063" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">arg_ty</span><span class="p">)</span></span>
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1049
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<pre style="margin: 0;">-<span id="LC1049" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">arg_ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;"><span class="idiff left right">applySubstTy</span></span> <span class="n" style="color: #333;">arg_ty</span></span>
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1064
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<pre style="margin: 0;">+<span id="LC1064" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">arg_ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;"><span class="idiff left right">lintType</span></span> <span class="n" style="color: #333;">arg_ty</span></span>
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1065
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<pre style="margin: 0;"> <span id="LC1065" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintTyApp</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty'</span> <span class="p">}</span></span>
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1051
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1066
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<pre style="margin: 0;"> <span id="LC1066" class="line" lang="haskell"></span>
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1067
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<pre style="margin: 0;"> <span id="LC1067" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreArg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1060,11 +1075,12 @@ lintCoreArg fun_ty arg</td>
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1060
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1075
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<pre style="margin: 0;"> <span id="LC1075" class="line" lang="haskell"></span>
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1061
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1076
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<pre style="margin: 0;"> <span id="LC1076" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isUnliftedType</span> <span class="n" style="color: #333;">arg_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">exprOkForSpeculation</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
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1062
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1077
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<pre style="margin: 0;"> <span id="LC1077" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkLetAppMsg</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
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1078
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<pre style="margin: 0;">+<span id="LC1078" class="line" lang="haskell"></span>
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1063
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1079
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<pre style="margin: 0;"> <span id="LC1079" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintValApp</span> <span class="n" style="color: #333;">arg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span> <span class="p">}</span></span>
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1064
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1080
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<pre style="margin: 0;"> <span id="LC1080" class="line" lang="haskell"></span>
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1065
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1081
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<pre style="margin: 0;"> <span id="LC1081" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1066
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<pre style="margin: 0;">-<span id="LC1066" class="line" lang="haskell"><span class="n" style="color: #333;">lintAltBinders</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Scrutinee type</span></span>
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1067
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<pre style="margin: 0;">-<span id="LC1067" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Constructor type</span></span>
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<pre style="margin: 0;">+<span id="LC1082" class="line" lang="haskell"><span class="n" style="color: #333;">lintAltBinders</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Scrutinee type</span></span>
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<pre style="margin: 0;">+<span id="LC1083" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Constructor type</span></span>
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1068
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1084
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<pre style="margin: 0;"> <span id="LC1084" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">OutVar</span><span class="p">]</span> <span class="c1" style="color: #998; font-style: italic;">-- Binders</span></span>
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1069
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1085
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<pre style="margin: 0;"> <span id="LC1085" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1086
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<pre style="margin: 0;"> <span id="LC1086" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1080,7 +1096,7 @@ lintAltBinders scrut_ty con_ty (bndr:bndrs)</td>
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<pre style="margin: 0;"> <span id="LC1096" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintAltBinders</span> <span class="n" style="color: #333;">scrut_ty</span> <span class="n" style="color: #333;">con_ty'</span> <span class="n" style="color: #333;">bndrs</span> <span class="p">}</span></span>
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1097
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<pre style="margin: 0;"> <span id="LC1097" class="line" lang="haskell"></span>
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1098
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<pre style="margin: 0;"> <span id="LC1098" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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<pre style="margin: 0;">-<span id="LC1083" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Out</span>Type</span></span>
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<pre style="margin: 0;">+<span id="LC1099" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span></span>
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<pre style="margin: 0;"> <span id="LC1100" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyApp</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span></span>
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<pre style="margin: 0;"> <span id="LC1101" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tv</span><span class="p">,</span><span class="n" style="color: #333;">body_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">splitForAllTy_maybe</span> <span class="n" style="color: #333;">fun_ty</span></span>
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1086
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1102
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<pre style="margin: 0;"> <span id="LC1102" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintTyKind</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">arg_ty</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1094,7 +1110,7 @@ lintTyApp fun_ty arg_ty</td>
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1110
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<pre style="margin: 0;"> <span id="LC1110" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">mkTyAppMsg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span><span class="p">)</span></span>
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1111
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<pre style="margin: 0;"> <span id="LC1111" class="line" lang="haskell"></span>
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1096
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1112
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<pre style="margin: 0;"> <span id="LC1112" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1097
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<pre style="margin: 0;">-<span id="LC1097" class="line" lang="haskell"><span class="n" style="color: #333;">lintValApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Out</span>Type</span></span>
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<pre style="margin: 0;">+<span id="LC1113" class="line" lang="haskell"><span class="n" style="color: #333;">lintValApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span></span>
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<pre style="margin: 0;"> <span id="LC1114" class="line" lang="haskell"><span class="n" style="color: #333;">lintValApp</span> <span class="n" style="color: #333;">arg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span></span>
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<pre style="margin: 0;"> <span id="LC1115" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">arg</span><span class="p">,</span><span class="n" style="color: #333;">res</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">splitFunTy_maybe</span> <span class="n" style="color: #333;">fun_ty</span></span>
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<pre style="margin: 0;"> <span id="LC1116" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">arg</span> <span class="n" style="color: #333;">arg_ty</span> <span class="n" style="color: #333;">err1</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1105,17 +1121,17 @@ lintValApp arg fun_ty arg_ty</td>
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<pre style="margin: 0;"> <span id="LC1121" class="line" lang="haskell"> <span class="n" style="color: #333;">err1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkAppMsg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span> <span class="n" style="color: #333;">arg</span></span>
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1106
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<pre style="margin: 0;"> <span id="LC1122" class="line" lang="haskell"> <span class="n" style="color: #333;">err2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkNonFunAppMsg</span> <span class="n" style="color: #333;">fun_ty</span> <span class="n" style="color: #333;">arg_ty</span> <span class="n" style="color: #333;">arg</span></span>
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1107
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1123
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<pre style="margin: 0;"> <span id="LC1123" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1108" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyKind</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutTyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1124
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<pre style="margin: 0;">+<span id="LC1124" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyKind</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutTyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1125
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<pre style="margin: 0;"> <span id="LC1125" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Both args have had substitution applied</span></span>
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<pre style="margin: 0;"> <span id="LC1126" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1127" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1128
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<pre style="margin: 0;"> <span id="LC1128" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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<pre style="margin: 0;"> <span id="LC1129" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyKind</span> <span class="n" style="color: #333;">tyvar</span> <span class="n" style="color: #333;">arg_ty</span></span>
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<pre style="margin: 0;">-<span id="LC1114" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">arg_kind</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">arg_ty</span></span>
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<pre style="margin: 0;">-<span id="LC1115" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">arg_kind</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyvar_kind</span><span class="p">)</span></span>
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1116
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<pre style="margin: 0;">-<span id="LC1116" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">mkKindErrMsg</span> <span class="n" style="color: #333;">tyvar</span> <span class="n" style="color: #333;">arg_ty</span> <span class="o" style="font-weight: 600;">$$</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Linted Arg kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">arg_kind</span><span class="p">)))</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC1130" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">arg_kind</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyvar_kind</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC1131" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">mkKindErrMsg</span> <span class="n" style="color: #333;">tyvar</span> <span class="n" style="color: #333;">arg_ty</span> <span class="o" style="font-weight: 600;">$$</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Linted Arg kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">arg_kind</span><span class="p">))</span></span>
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1132
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<pre style="margin: 0;"> <span id="LC1132" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1133
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<pre style="margin: 0;"> <span id="LC1133" class="line" lang="haskell"> <span class="n" style="color: #333;">tyvar_kind</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tyvar</span></span>
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1134
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<pre style="margin: 0;">+<span id="LC1134" class="line" lang="haskell"> <span class="n" style="color: #333;">arg_kind</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">arg_ty</span></span>
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1119
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1135
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<pre style="margin: 0;"> <span id="LC1135" class="line" lang="haskell"></span>
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1120
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1136
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<pre style="margin: 0;"> <span id="LC1136" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{-</span></span>
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1121
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1137
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<pre style="margin: 0;"> <span id="LC1137" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1125,7 +1141,7 @@ lintTyKind tyvar arg_ty</td>
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1125
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1141
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<pre style="margin: 0;"> <span id="LC1141" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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1126
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1142
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<pre style="margin: 0;"> <span id="LC1142" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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1127
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1143
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<pre style="margin: 0;"> <span id="LC1143" class="line" lang="haskell"></span>
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1128
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<pre style="margin: 0;">-<span id="LC1128" class="line" lang="haskell"><span class="n" style="color: #333;">lintCaseExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoreAlt</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span></span>
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1144
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<pre style="margin: 0;">+<span id="LC1144" class="line" lang="haskell"><span class="n" style="color: #333;">lintCaseExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoreAlt</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span></span>
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1129
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1145
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<pre style="margin: 0;"> <span id="LC1145" class="line" lang="haskell"><span class="n" style="color: #333;">lintCaseExpr</span> <span class="n" style="color: #333;">scrut</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">alt_ty</span> <span class="n" style="color: #333;">alts</span> <span class="o" style="font-weight: 600;">=</span></span>
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1130
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1146
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<pre style="margin: 0;"> <span id="LC1146" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Case</span> <span class="n" style="color: #333;">scrut</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">alt_ty</span> <span class="n" style="color: #333;">alts</span> <span class="c1" style="color: #998; font-style: italic;">-- Just for error messages</span></span>
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1131
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1147
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<pre style="margin: 0;"> <span id="LC1147" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1134,10 +1150,10 @@ lintCaseExpr scrut var alt_ty alts =</td>
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1134
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1150
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<pre style="margin: 0;"> <span id="LC1150" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Join points are less general than the paper]</span></span>
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1135
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1151
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<pre style="margin: 0;"> <span id="LC1151" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in GHC.Core</span></span>
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1136
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1152
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<pre style="margin: 0;"> <span id="LC1152" class="line" lang="haskell"></span>
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1137
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<pre style="margin: 0;">-<span id="LC1137" class="line" lang="haskell"> <span class="p">;</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">alt_ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CaseTy</span> <span class="n" style="color: #333;">scrut</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1138
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<pre style="margin: 0;">-<span id="LC1138" class="line" lang="haskell"> <span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">lintInTy</span></span> <span class="n" style="color: #333;">alt_ty</span></span>
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1139
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<pre style="margin: 0;">-<span id="LC1139" class="line" lang="haskell"> <span class="p">;</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">var_ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IdTy</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC1140" class="line" lang="haskell"> <span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">lintInTy</span></span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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1153
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<pre style="margin: 0;">+<span id="LC1153" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;"><span class="idiff left right">alt_ty</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CaseTy</span> <span class="n" style="color: #333;">scrut</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1154
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<pre style="margin: 0;">+<span id="LC1154" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left right">lintValueType</span></span> <span class="n" style="color: #333;">alt_ty</span></span>
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1155
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<pre style="margin: 0;">+<span id="LC1155" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;"><span class="idiff left right">var_ty</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IdTy</span> <span class="n" style="color: #333;">var</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1156
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<pre style="margin: 0;">+<span id="LC1156" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left right">lintValueType</span></span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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1141
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1157
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<pre style="margin: 0;"> <span id="LC1157" class="line" lang="haskell"></span>
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1142
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1158
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<pre style="margin: 0;"> <span id="LC1158" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We used to try to check whether a case expression with no</span></span>
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1143
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1159
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<pre style="margin: 0;"> <span id="LC1159" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- alternatives was legitimate, but this didn't work.</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1195" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1179,7 +1195,7 @@ lintCaseExpr scrut var alt_ty alts =</td>
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1179
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1195
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<pre style="margin: 0;"> <span id="LC1195" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkCaseAlts</span> <span class="n" style="color: #333;">e</span> <span class="n" style="color: #333;">scrut_ty</span> <span class="n" style="color: #333;">alts</span></span>
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1180
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1196
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<pre style="margin: 0;"> <span id="LC1196" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">alt_ty</span> <span class="p">}</span> <span class="p">}</span></span>
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1181
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1197
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<pre style="margin: 0;"> <span id="LC1197" class="line" lang="haskell"></span>
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1182
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<pre style="margin: 0;">-<span id="LC1182" class="line" lang="haskell"><span class="n" style="color: #333;">checkCaseAlts</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoreAlt</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1198
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<pre style="margin: 0;">+<span id="LC1198" class="line" lang="haskell"><span class="n" style="color: #333;">checkCaseAlts</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoreAlt</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1183
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<pre style="margin: 0;"> <span id="LC1199" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- a) Check that the alts are non-empty</span></span>
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1184
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1200
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<pre style="margin: 0;"> <span id="LC1200" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- b1) Check that the DEFAULT comes first, if it exists</span></span>
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1185
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1201
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<pre style="margin: 0;"> <span id="LC1201" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- b2) Check that the others are in increasing order</span></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1235" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1219,14 +1235,14 @@ checkCaseAlts e ty alts =</td>
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1219
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1235
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<pre style="margin: 0;"> <span id="LC1235" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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1220
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1236
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<pre style="margin: 0;"> <span id="LC1236" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">tycon</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">isPrimTyCon</span> <span class="n" style="color: #333;">tycon</span></span>
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1221
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1237
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<pre style="margin: 0;"> <span id="LC1237" class="line" lang="haskell"></span>
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1222
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<pre style="margin: 0;">-<span id="LC1222" class="line" lang="haskell"><span class="n" style="color: #333;">lintAltExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC1238" class="line" lang="haskell"><span class="n" style="color: #333;">lintAltExpr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoreExpr</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1223
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1239
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<pre style="margin: 0;"> <span id="LC1239" class="line" lang="haskell"><span class="n" style="color: #333;">lintAltExpr</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">ann_ty</span></span>
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1224
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1240
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<pre style="margin: 0;"> <span id="LC1240" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">actual_ty</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoreExpr</span> <span class="n" style="color: #333;">expr</span></span>
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1225
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1241
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<pre style="margin: 0;"> <span id="LC1241" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">actual_ty</span> <span class="n" style="color: #333;">ann_ty</span> <span class="p">(</span><span class="n" style="color: #333;">mkCaseAltMsg</span> <span class="n" style="color: #333;">expr</span> <span class="n" style="color: #333;">actual_ty</span> <span class="n" style="color: #333;">ann_ty</span><span class="p">)</span> <span class="p">}</span></span>
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1226
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1242
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<pre style="margin: 0;"> <span id="LC1242" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See GHC.Core Note [Case expression invariants] item (6)</span></span>
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1227
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1243
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<pre style="margin: 0;"> <span id="LC1243" class="line" lang="haskell"></span>
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1228
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<pre style="margin: 0;">-<span id="LC1228" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreAlt</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Type of scrutinee</span></span>
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1229
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<pre style="margin: 0;">-<span id="LC1229" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Type of the alternative</span></span>
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1244
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<pre style="margin: 0;">+<span id="LC1244" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreAlt</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Type of scrutinee</span></span>
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1245
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<pre style="margin: 0;">+<span id="LC1245" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Type of the alternative</span></span>
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1230
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1246
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<pre style="margin: 0;"> <span id="LC1246" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreAlt</span></span>
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1231
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1247
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<pre style="margin: 0;"> <span id="LC1247" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1232
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1248
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<pre style="margin: 0;"> <span id="LC1248" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1286,33 +1302,36 @@ lintBinders site (var:vars) linterF = lintBinder site var $ \var' -></td>
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1286
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1302
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<pre style="margin: 0;"> <span id="LC1302" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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1287
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1303
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<pre style="margin: 0;"> <span id="LC1303" class="line" lang="haskell"><span class="n" style="color: #333;">lintBinder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">BindingSite</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1288
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1304
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<pre style="margin: 0;"> <span id="LC1304" class="line" lang="haskell"><span class="n" style="color: #333;">lintBinder</span> <span class="n" style="color: #333;">site</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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<pre style="margin: 0;">-<span id="LC1289" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">var</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyBndr</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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1290
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<pre style="margin: 0;">-<span id="LC1290" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">var</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintCoBndr</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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1291
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<pre style="margin: 0;">-<span id="LC1291" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintIdBndr</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="n" style="color: #333;">site</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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<pre style="margin: 0;">+<span id="LC1305" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyCoVar</span> <span class="n" style="color: #333;">var</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyCoBndr</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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1306
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<pre style="margin: 0;">+<span id="LC1306" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintIdBndr</span> <span class="kt" style="color: #458; font-weight: 600;">NotTopLevel</span> <span class="n" style="color: #333;">site</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">linterF</span></span>
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1292
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1307
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<pre style="margin: 0;"> <span id="LC1307" class="line" lang="haskell"></span>
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1293
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<pre style="margin: 0;">-<span id="LC1293" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyBndr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InTyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OutTyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1294
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<pre style="margin: 0;">-<span id="LC1294" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyBndr</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">thing_inside</span></span>
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1295
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<pre style="margin: 0;">-<span id="LC1295" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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1296
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<pre style="margin: 0;">-<span id="LC1296" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="n" style="color: #333;">subst'</span><span class="p">,</span> <span class="n" style="color: #333;">tv'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substTyVarBndr</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">tv</span></span>
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1297
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<pre style="margin: 0;">-<span id="LC1297" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintKind</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">tv'</span><span class="p">)</span></span>
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1298
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<pre style="margin: 0;">-<span id="LC1298" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">updateTCvSubst</span> <span class="n" style="color: #333;">subst'</span> <span class="p">(</span><span class="n" style="color: #333;">thing_inside</span> <span class="n" style="color: #333;">tv'</span><span class="p">)</span> <span class="p">}</span></span>
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1308
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<pre style="margin: 0;">+<span id="LC1308" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyBndr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LintedTyCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC1309" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyBndr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyCoBndr</span> <span class="c1" style="color: #998; font-style: italic;">-- We could specialise it, I guess</span></span>
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1299
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1310
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<pre style="margin: 0;"> <span id="LC1310" class="line" lang="haskell"></span>
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1300
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<pre style="margin: 0;">-<span id="LC1300" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoBndr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OutCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1301
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<pre style="margin: 0;">-<span id="LC1301" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoBndr</span> <span class="n" style="color: #333;">cv</span> <span class="n" style="color: #333;">thing_inside</span></span>
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1311
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<pre style="margin: 0;">+<span id="LC1311" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- lintCoBndr :: CoVar -> (LintedTyCoVar -> LintM a) -> LintM a</span></span>
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1312
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<pre style="margin: 0;">+<span id="LC1312" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- lintCoBndr = lintTyCoBndr -- We could specialise it, I guess</span></span>
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1313
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<pre style="margin: 0;">+<span id="LC1313" class="line" lang="haskell"></span>
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1314
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<pre style="margin: 0;">+<span id="LC1314" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyCoBndr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LintedTyCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1315
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<pre style="margin: 0;">+<span id="LC1315" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyCoBndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">thing_inside</span></span>
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1302
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1316
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<pre style="margin: 0;"> <span id="LC1316" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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1303
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<pre style="margin: 0;">-<span id="LC1303" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="n" style="color: #333;">subst'</span><span class="p">,</span> <span class="n" style="color: #333;">cv'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substCoVarBndr</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">cv</span></span>
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1304
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<pre style="margin: 0;">-<span id="LC1304" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintKind</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv'</span><span class="p">)</span></span>
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1305
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<pre style="margin: 0;">-<span id="LC1305" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVarType</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv'</span><span class="p">))</span></span>
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1306
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<pre style="margin: 0;">-<span id="LC1306" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"CoVar with non-coercion type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprTyVar</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1307
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<pre style="margin: 0;">-<span id="LC1307" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">updateTCvSubst</span> <span class="n" style="color: #333;">subst'</span> <span class="p">(</span><span class="n" style="color: #333;">thing_inside</span> <span class="n" style="color: #333;">cv'</span><span class="p">)</span> <span class="p">}</span></span>
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1308
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<pre style="margin: 0;">-<span id="LC1308" class="line" lang="haskell"></span>
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1309
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<pre style="margin: 0;">-<span id="LC1309" class="line" lang="haskell"><span class="n" style="color: #333;">lintLetBndrs</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1310
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<pre style="margin: 0;">-<span id="LC1310" class="line" lang="haskell"><span class="n" style="color: #333;">lintLetBndrs</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">ids</span> <span class="n" style="color: #333;">linterF</span></span>
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1311
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<pre style="margin: 0;">-<span id="LC1311" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">ids</span></span>
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1317
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<pre style="margin: 0;">+<span id="LC1317" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">kind'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1318" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1318
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<pre style="margin: 0;">+<span id="LC1318" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tcv'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">uniqAway</span> <span class="p">(</span><span class="n" style="color: #333;">getTCvInScope</span> <span class="n" style="color: #333;">subst</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1319" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1319
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<pre style="margin: 0;">+<span id="LC1319" class="line" lang="haskell"> <span class="n" style="color: #333;">setVarType</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">kind'</span></span>
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1320
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<pre style="margin: 0;">+<span id="LC1320" class="line" lang="haskell"> <span class="n" style="color: #333;">subst'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendTCvSubstWithClone</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">tcv'</span></span>
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1321
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<pre style="margin: 0;">+<span id="LC1321" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1322
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<pre style="margin: 0;">+<span id="LC1322" class="line" lang="haskell"> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVarType</span> <span class="n" style="color: #333;">kind'</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1323" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1323
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<pre style="margin: 0;">+<span id="LC1323" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"CoVar with non-coercion type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprTyVar</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1324" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1324
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<pre style="margin: 0;">+<span id="LC1324" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">updateTCvSubst</span> <span class="n" style="color: #333;">subst'</span> <span class="p">(</span><span class="n" style="color: #333;">thing_inside</span> <span class="n" style="color: #333;">tcv'</span><span class="p">)</span> <span class="p">}</span></span>
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1325
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<pre style="margin: 0;">+<span id="LC1325" class="line" lang="haskell"></span>
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1326
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<pre style="margin: 0;">+<span id="LC1326" class="line" lang="haskell"><span class="n" style="color: #333;">lintIdBndrs</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">a</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">([</span><span class="kt" style="color: #458; font-weight: 600;">LintedId</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1327
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<pre style="margin: 0;">+<span id="LC1327" class="line" lang="haskell"><span class="n" style="color: #333;">lintIdBndrs</span> <span class="n" style="color: #333;">top_lvl</span> <span class="n" style="color: #333;">ids</span> <span class="n" style="color: #333;">thing_inside</span></span>
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1328
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<pre style="margin: 0;">+<span id="LC1328" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">ids</span> <span class="n" style="color: #333;">thing_inside</span></span>
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1312
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1329
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<pre style="margin: 0;"> <span id="LC1329" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1313
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<pre style="margin: 0;">-<span id="LC1313" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">linterF</span></span>
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1314
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<pre style="margin: 0;">-<span id="LC1314" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">id</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ids</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintIdBndr</span> <span class="n" style="color: #333;">top_lvl</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span></span>
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1315
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<pre style="margin: 0;">-<span id="LC1315" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">ids</span></span>
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1330
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<pre style="margin: 0;">+<span id="LC1330" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">([</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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1331
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<pre style="margin: 0;">+<span id="LC1331" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">thing_inside</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">thing_inside</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>
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1332
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<pre style="margin: 0;">+<span id="LC1332" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="n" style="color: #333;">id</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ids</span><span class="p">)</span> <span class="n" style="color: #333;">thing_inside</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintIdBndr</span> <span class="n" style="color: #333;">top_lvl</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">id'</span> <span class="o" style="font-weight: 600;">-></span></span>
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1333
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<pre style="margin: 0;">+<span id="LC1333" class="line" lang="haskell"> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">ids</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">ids'</span> <span class="o" style="font-weight: 600;">-></span></span>
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1334
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<pre style="margin: 0;">+<span id="LC1334" class="line" lang="haskell"> <span class="n" style="color: #333;">thing_inside</span> <span class="p">(</span><span class="n" style="color: #333;">id'</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">ids'</span><span class="p">)</span></span>
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1316
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1335
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<pre style="margin: 0;"> <span id="LC1335" class="line" lang="haskell"></span>
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1317
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1336
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<pre style="margin: 0;"> <span id="LC1336" class="line" lang="haskell"><span class="n" style="color: #333;">lintIdBndr</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">BindingSite</span></span>
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1318
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1337
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<pre style="margin: 0;"> <span id="LC1337" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">InVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OutVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1334" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1353" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1334,14 +1353,15 @@ lintIdBndr top_lvl bind_site id linterF</td>
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1334
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1353
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<pre style="margin: 0;"> <span id="LC1353" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isExternalName</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">varName</span> <span class="n" style="color: #333;">id</span><span class="p">))</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">is_top_lvl</span><span class="p">)</span></span>
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1335
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1354
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<pre style="margin: 0;"> <span id="LC1354" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">mkNonTopExternalNameMsg</span> <span class="n" style="color: #333;">id</span><span class="p">)</span></span>
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1336
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1355
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<pre style="margin: 0;"> <span id="LC1355" class="line" lang="haskell"></span>
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1337
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<pre style="margin: 0;">-<span id="LC1337" class="line" lang="haskell"> <span class="p">;</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">id_ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IdTy</span> <span class="n" style="color: #333;">id</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1338
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<pre style="margin: 0;">-<span id="LC1338" class="line" lang="haskell"> <span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">lintInTy</span></span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">id</span><span class="p">)</span></span>
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1356
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<pre style="margin: 0;">+<span id="LC1356" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;"><span class="idiff left right">id_ty</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IdTy</span> <span class="n" style="color: #333;">id</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1357
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<pre style="margin: 0;">+<span id="LC1357" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left right">lintValueType</span></span> <span class="p">(</span><span class="n" style="color: #333;">idType</span> <span class="n" style="color: #333;">id</span><span class="p">)</span></span>
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1339
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1358
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<pre style="margin: 0;"> <span id="LC1358" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">id'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">setIdType</span> <span class="n" style="color: #333;">id</span> <span class="n" style="color: #333;">id_ty</span></span>
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1340
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1359
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<pre style="margin: 0;"> <span id="LC1359" class="line" lang="haskell"></span>
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1341
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1360
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<pre style="margin: 0;"> <span id="LC1360" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Levity polymorphism invariants] in GHC.Core</span></span>
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1342
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<pre style="margin: 0;">-<span id="LC1342" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">lf_check_levity_poly</span> <span class="n" style="color: #333;">flags</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isKindLevPoly</span> <span class="n" style="color: #333;">k</span><span class="p">))</span></span>
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1343
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<pre style="margin: 0;">-<span id="LC1343" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Levity-polymorphic binder:"</span> <span class="o" style="font-weight: 600;"><+></span></span>
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1344
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<pre style="margin: 0;">-<span id="LC1344" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">parens</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">id_ty</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span><span class="p">)))</span></span>
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1361
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<pre style="margin: 0;">+<span id="LC1361" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">lf_check_levity_poly</span> <span class="n" style="color: #333;">flags</span><span class="p">)</span></span>
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1362
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<pre style="margin: 0;">+<span id="LC1362" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTypeLevPoly</span> <span class="n" style="color: #333;">id_ty</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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1363
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<pre style="margin: 0;">+<span id="LC1363" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Levity-polymorphic binder:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span></span>
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1364
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<pre style="margin: 0;">+<span id="LC1364" class="line" lang="haskell"> <span class="n" style="color: #333;">parens</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">id_ty</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">id_ty</span><span class="p">))</span></span>
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1345
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1365
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<pre style="margin: 0;"> <span id="LC1365" class="line" lang="haskell"></span>
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1346
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1366
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<pre style="margin: 0;"> <span id="LC1366" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check that a join-id is a not-top-level let-binding</span></span>
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1347
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1367
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<pre style="margin: 0;"> <span id="LC1367" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">id</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1378" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1398" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1378,45 +1398,52 @@ lintTypes dflags vars tys</td>
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1378
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1398
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<pre style="margin: 0;"> <span id="LC1398" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1379
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1399
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<pre style="margin: 0;"> <span id="LC1399" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">_warns</span><span class="p">,</span> <span class="n" style="color: #333;">errs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">initL</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">defaultLintFlags</span> <span class="n" style="color: #333;">vars</span> <span class="n" style="color: #333;">linter</span></span>
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1380
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1400
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<pre style="margin: 0;"> <span id="LC1400" class="line" lang="haskell"> <span class="n" style="color: #333;">linter</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintBinders</span> <span class="kt" style="color: #458; font-weight: 600;">LambdaBind</span> <span class="n" style="color: #333;">vars</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span></span>
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1381
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<pre style="margin: 0;">-<span id="LC1381" class="line" lang="haskell"> <span class="n" style="color: #333;">mapM_</span> <span class="n" style="color: #333;">lint<span class="idiff left right">InTy</span></span> <span class="n" style="color: #333;">tys</span></span>
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1401
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<pre style="margin: 0;">+<span id="LC1401" class="line" lang="haskell"> <span class="n" style="color: #333;">mapM_</span> <span class="n" style="color: #333;">lint<span class="idiff left right">Type</span></span> <span class="n" style="color: #333;">tys</span></span>
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1382
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1402
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<pre style="margin: 0;"> <span id="LC1402" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1383" class="line" lang="haskell"><span class="n" style="color: #333;">lint<span class="idiff left">InTy</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedKind</span></span><span class="p"><span class="idiff right">)</span></span></span>
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1403
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<pre style="margin: 0;">+<span id="LC1403" class="line" lang="haskell"><span class="n" style="color: #333;">lint<span class="idiff left">ValueType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Type</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedType</span></span></span>
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1384
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1404
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<pre style="margin: 0;"> <span id="LC1404" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Types only, not kinds</span></span>
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1385
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1405
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<pre style="margin: 0;"> <span id="LC1405" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Check the type, and apply the substitution to it</span></span>
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1386
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1406
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<pre style="margin: 0;"> <span id="LC1406" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Linting type lets]</span></span>
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<pre style="margin: 0;">-<span id="LC1387" class="line" lang="haskell"><span class="n" style="color: #333;">lint<span class="idiff left right">InTy</span></span> <span class="n" style="color: #333;">ty</span></span>
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1407
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<pre style="margin: 0;">+<span id="LC1407" class="line" lang="haskell"><span class="n" style="color: #333;">lint<span class="idiff left right">ValueType</span></span> <span class="n" style="color: #333;">ty</span></span>
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1388
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1408
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<pre style="margin: 0;"> <span id="LC1408" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InType</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1389
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<pre style="margin: 0;">-<span id="LC1389" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">applySubstTy</span> <span class="n" style="color: #333;">ty</span></span>
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1390
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<pre style="margin: 0;">-<span id="LC1390" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty'</span></span>
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1391
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<pre style="margin: 0;">-<span id="LC1391" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InKind</span> <span class="n" style="color: #333;">ty'</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1392
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<pre style="margin: 0;">-<span id="LC1392" class="line" lang="haskell"> <span class="n" style="color: #333;">lintKind</span> <span class="n" style="color: #333;">k</span> <span class="c1" style="color: #998; font-style: italic;">-- The kind returned by lintType is already</span></span>
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1393
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<pre style="margin: 0;">-<span id="LC1393" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- a LintedKind but we also want to check that</span></span>
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<pre style="margin: 0;">-<span id="LC1394" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- k :: *, which lintKind does</span></span>
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1395
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<pre style="margin: 0;">-<span id="LC1395" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">ty'</span><span class="p">,</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="p">}</span></span>
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1409
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<pre style="margin: 0;">+<span id="LC1409" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1410
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<pre style="margin: 0;">+<span id="LC1410" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">sk</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty'</span></span>
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<pre style="margin: 0;">+<span id="LC1411" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">sk</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1412
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<pre style="margin: 0;">+<span id="LC1412" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Ill-kinded type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1413
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<pre style="margin: 0;">+<span id="LC1413" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"has kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">sk</span><span class="p">)</span></span>
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1414
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<pre style="margin: 0;">+<span id="LC1414" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">ty'</span> <span class="p">}</span></span>
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1396
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1415
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<pre style="margin: 0;"> <span id="LC1415" class="line" lang="haskell"></span>
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1397
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1416
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<pre style="margin: 0;"> <span id="LC1416" class="line" lang="haskell"><span class="n" style="color: #333;">checkTyCon</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1398
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1417
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<pre style="margin: 0;"> <span id="LC1417" class="line" lang="haskell"><span class="n" style="color: #333;">checkTyCon</span> <span class="n" style="color: #333;">tc</span></span>
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1399
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<td class="diff-line-num new_line" data-linenumber="1418" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1418
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<pre style="margin: 0;"> <span id="LC1418" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTcTyCon</span> <span class="n" style="color: #333;">tc</span><span class="p">))</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Found TcTyCon:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span></span>
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1400
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1419
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<pre style="margin: 0;"> <span id="LC1419" class="line" lang="haskell"></span>
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1401
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1420
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<pre style="margin: 0;"> <span id="LC1420" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-------------------</span></span>
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1402
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<pre style="margin: 0;">-<span id="LC1402" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span></span>
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1403
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<pre style="margin: 0;">-<span id="LC1403" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The returned Kind has itself been linted</span></span>
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1421
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<pre style="margin: 0;">+<span id="LC1421" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span></span>
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1404
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1422
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<pre style="margin: 0;"> <span id="LC1422" class="line" lang="haskell"></span>
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1405
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1423
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<pre style="margin: 0;"> <span id="LC1423" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1406
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1424
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<pre style="margin: 0;"> <span id="LC1424" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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1407
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1425
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<pre style="margin: 0;"> <span id="LC1425" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyVarTy</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span></span>
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1408
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<pre style="margin: 0;">-<span id="LC1408" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkL</span> <span class="p">(</span><span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadTyVarMsg</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span></span>
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1409
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<pre style="margin: 0;">-<span id="LC1409" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">tv'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintTyCoVarInScope</span> <span class="n" style="color: #333;">tv</span></span>
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1410
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<pre style="margin: 0;">-<span id="LC1410" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tv'</span><span class="p">)</span> <span class="p">}</span></span>
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1411
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<pre style="margin: 0;">-<span id="LC1411" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We checked its kind when we added it to the envt</span></span>
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1426
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<pre style="margin: 0;">+<span id="LC1426" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span></span>
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1427
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<pre style="margin: 0;">+<span id="LC1427" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadTyVarMsg</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span></span>
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1428
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<pre style="margin: 0;">+<span id="LC1428" class="line" lang="haskell"></span>
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1429
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<pre style="margin: 0;">+<span id="LC1429" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1430
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<pre style="margin: 0;">+<span id="LC1430" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1431" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1431
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<pre style="margin: 0;">+<span id="LC1431" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookupTyVar</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">tv</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1432" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1432
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<pre style="margin: 0;">+<span id="LC1432" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">linted_ty</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">linted_ty</span> <span class="p">;</span></span>
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1433
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<pre style="margin: 0;">+<span id="LC1433" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="c1" style="color: #998; font-style: italic;">-- lintTyBndr always extends the substitition</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1434" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1434
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<pre style="margin: 0;">+<span id="LC1434" class="line" lang="haskell"> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1435" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1435
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<pre style="margin: 0;">+<span id="LC1435" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"The type variable"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprBndr</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1436" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1436
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<pre style="margin: 0;">+<span id="LC1436" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"is out of scope"</span><span class="p">)</span></span>
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1437
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<pre style="margin: 0;">+<span id="LC1437" class="line" lang="haskell"> <span class="p">}</span></span>
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1412
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1438
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<pre style="margin: 0;"> <span id="LC1438" class="line" lang="haskell"></span>
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1413
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1439
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<pre style="margin: 0;"> <span id="LC1439" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppTy</span> <span class="n" style="color: #333;">t1</span> <span class="n" style="color: #333;">t2</span><span class="p">)</span></span>
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1414
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1440
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<pre style="margin: 0;"> <span id="LC1440" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">t1</span></span>
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1415
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1441
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<pre style="margin: 0;"> <span id="LC1441" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"TyConApp to the left of AppTy:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span></span>
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1416
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1442
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<pre style="margin: 0;"> <span id="LC1442" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1417
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<td class="diff-line-num new_line old" data-linenumber="1443" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1417" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t1</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1418" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1418
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<pre style="margin: 0;">-<span id="LC1418" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t2</span></span>
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1419
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<pre style="margin: 0;">-<span id="LC1419" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">k1</span> <span class="p">[(</span><span class="n" style="color: #333;">t2</span><span class="p">,</span><span class="n" style="color: #333;">k2</span><span class="p">)]</span> <span class="p">}</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1420" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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1443
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<pre style="margin: 0;">+<span id="LC1443" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">t1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t1</span></span>
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1444
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<pre style="margin: 0;">+<span id="LC1444" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">t2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t2</span></span>
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1445
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<pre style="margin: 0;">+<span id="LC1445" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">t1'</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">t2'</span><span class="p">]</span></span>
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<pre style="margin: 0;">+<span id="LC1446" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppTy</span> <span class="n" style="color: #333;">t1'</span> <span class="n" style="color: #333;">t2'</span><span class="p">)</span> <span class="p">}</span></span>
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1420
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1447
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<pre style="margin: 0;"> <span id="LC1447" class="line" lang="haskell"></span>
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1421
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1448
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<pre style="margin: 0;"> <span id="LC1448" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
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1422
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1449
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<pre style="margin: 0;"> <span id="LC1449" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTypeSynonymTyCon</span> <span class="n" style="color: #333;">tc</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">isTypeFamilyTyCon</span> <span class="n" style="color: #333;">tc</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1433,71 +1460,73 @@ lintType ty@(TyConApp tc tys)</td>
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1433
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1460
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<pre style="margin: 0;"> <span id="LC1460" class="line" lang="haskell"></span>
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1434
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1461
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<pre style="margin: 0;"> <span id="LC1461" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="c1" style="color: #998; font-style: italic;">-- Data types, data families, primitive types</span></span>
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1435
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1462
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<pre style="margin: 0;"> <span id="LC1462" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkTyCon</span> <span class="n" style="color: #333;">tc</span></span>
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1436
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<pre style="margin: 0;">-<span id="LC1436" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ks</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span></span>
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1437
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<pre style="margin: 0;">-<span id="LC1437" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">tys</span> <span class="p">`</span><span class="n" style="color: #333;">zip</span><span class="p">`</span> <span class="n" style="color: #333;">ks</span><span class="p">)</span> <span class="p">}</span></span>
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1463
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<pre style="margin: 0;">+<span id="LC1463" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">tys'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span></span>
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1464
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<pre style="margin: 0;">+<span id="LC1464" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="n" style="color: #333;">tys'</span></span>
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1465
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<pre style="margin: 0;">+<span id="LC1465" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">tys'</span><span class="p">)</span> <span class="p">}</span></span>
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1438
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1466
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<pre style="margin: 0;"> <span id="LC1466" class="line" lang="haskell"></span>
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1439
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1467
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<pre style="margin: 0;"> <span id="LC1467" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- arrows can related *unlifted* kinds, so this has to be separate from</span></span>
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1440
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1468
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<pre style="margin: 0;"> <span id="LC1468" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- a dependent forall.</span></span>
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1441
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<pre style="margin: 0;">-<span id="LC1441" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunTy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">t1</span> <span class="n" style="color: #333;">t2</span><span class="p">)</span></span>
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1442
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<pre style="margin: 0;">-<span id="LC1442" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t1</span></span>
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1443
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<pre style="margin: 0;">-<span id="LC1443" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t2</span></span>
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1444
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<pre style="margin: 0;">-<span id="LC1444" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"type or kind"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC1469" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunTy</span> <span class="n" style="color: #333;">af</span> <span class="n" style="color: #333;">t1</span> <span class="n" style="color: #333;">t2</span><span class="p">)</span></span>
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1470
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<pre style="margin: 0;">+<span id="LC1470" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">t1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t1</span></span>
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1471
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<pre style="margin: 0;">+<span id="LC1471" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">t2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t2</span></span>
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1472
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<pre style="margin: 0;">+<span id="LC1472" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"type or kind"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span> <span class="n" style="color: #333;">t1'</span> <span class="n" style="color: #333;">t2'</span></span>
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1473
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<pre style="margin: 0;">+<span id="LC1473" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunTy</span> <span class="n" style="color: #333;">af</span> <span class="n" style="color: #333;">t1'</span> <span class="n" style="color: #333;">t2'</span><span class="p">)</span> <span class="p">}</span></span>
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1445
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1474
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<pre style="margin: 0;"> <span id="LC1474" class="line" lang="haskell"></span>
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1446
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<pre style="margin: 0;">-<span id="LC1446" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">_vis</span><span class="p">)</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1447
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<pre style="margin: 0;">-<span id="LC1447" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over types</span></span>
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1448
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<pre style="margin: 0;">-<span id="LC1448" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv</span></span>
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1449
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<pre style="margin: 0;">-<span id="LC1449" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyBndr</span> <span class="n" style="color: #333;">tv</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">tv'</span> <span class="o" style="font-weight: 600;">-></span></span>
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1450
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<pre style="margin: 0;">-<span id="LC1450" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1451
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<pre style="margin: 0;">-<span id="LC1451" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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1452
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<pre style="margin: 0;">-<span id="LC1452" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">occCheckExpand</span> <span class="p">[</span><span class="n" style="color: #333;">tv'</span><span class="p">]</span> <span class="n" style="color: #333;">k</span> <span class="kr" style="font-weight: 600;">of</span> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Stupid type synonyms]</span></span>
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1453
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<pre style="margin: 0;">-<span id="LC1453" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">k'</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">k'</span></span>
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1454
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<pre style="margin: 0;">-<span id="LC1454" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Variable escape in forall:"</span><span class="p">)</span></span>
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1455
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<pre style="margin: 0;">-<span id="LC1455" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span></span>
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1456
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<pre style="margin: 0;">-<span id="LC1456" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span> <span class="p">]))</span></span>
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1457
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<pre style="margin: 0;">-<span id="LC1457" class="line" lang="haskell"> <span class="p">}</span></span>
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1475
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<pre style="margin: 0;">+<span id="LC1475" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">vis</span><span class="p">)</span> <span class="n" style="color: #333;">body_ty</span><span class="p">)</span></span>
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1476
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<pre style="margin: 0;">+<span id="LC1476" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyCoBndr</span> <span class="n" style="color: #333;">tcv</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">tcv'</span> <span class="o" style="font-weight: 600;">-></span></span>
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1477
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<pre style="margin: 0;">+<span id="LC1477" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">body_ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">body_ty</span></span>
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1478
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<pre style="margin: 0;">+<span id="LC1478" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintForAllBody</span> <span class="n" style="color: #333;">tcv'</span> <span class="n" style="color: #333;">body_ty'</span></span>
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1479
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<pre style="margin: 0;">+<span id="LC1479" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">tcv'</span> <span class="n" style="color: #333;">vis</span><span class="p">)</span> <span class="n" style="color: #333;">body_ty'</span><span class="p">)</span> <span class="p">}</span></span>
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1458
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1480
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<pre style="margin: 0;"> <span id="LC1480" class="line" lang="haskell"></span>
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1459
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<pre style="margin: 0;">-<span id="LC1459" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">cv</span> <span class="n" style="color: #333;">_vis</span><span class="p">)</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1460
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<td class="diff-line-num new_line old" data-linenumber="1481" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1460" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over coercions</span></span>
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1461
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<td class="diff-line-num new_line old" data-linenumber="1481" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1461" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1462
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<td class="diff-line-num new_line old" data-linenumber="1481" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1462" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non-Tyvar or Non-Covar bound in type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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1463
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<pre style="margin: 0;">-<span id="LC1463" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">cv</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tyCoVarsOfType</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1464
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<td class="diff-line-num new_line old" data-linenumber="1481" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1464" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Covar does not occur in the body:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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1465
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<pre style="margin: 0;">-<span id="LC1465" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintCoBndr</span> <span class="n" style="color: #333;">cv</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span></span>
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1466
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<pre style="margin: 0;">-<span id="LC1466" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1467
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<pre style="margin: 0;">-<span id="LC1467" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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1468
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<pre style="margin: 0;">-<span id="LC1468" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">liftedTypeKind</span></span>
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1469
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<pre style="margin: 0;">-<span id="LC1469" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We don't check variable escape here. Namely, k could refer to cv'</span></span>
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1470
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<pre style="margin: 0;">-<span id="LC1470" class="line" lang="haskell"> <span class="p">}}</span></span>
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1471
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<pre style="margin: 0;">-<span id="LC1471" class="line" lang="haskell"></span>
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1472
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<pre style="margin: 0;">-<span id="LC1472" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LitTy</span> <span class="n" style="color: #333;">l</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintTyLit</span> <span class="n" style="color: #333;">l</span> <span class="o" style="font-weight: 600;">>></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1481
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<pre style="margin: 0;">+<span id="LC1481" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LitTy</span> <span class="n" style="color: #333;">l</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1482" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1482
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<pre style="margin: 0;">+<span id="LC1482" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintTyLit</span> <span class="n" style="color: #333;">l</span><span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">ty</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC1483" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1484" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CastTy</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC1475" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1476
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<pre style="margin: 0;">-<span id="LC1476" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k1'</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1477
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<pre style="margin: 0;">-<span id="LC1477" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k1'</span> <span class="p">(</span><span class="n" style="color: #333;">mkCastTyErr</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;">k1'</span> <span class="n" style="color: #333;">k1</span><span class="p">)</span></span>
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1478
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<pre style="margin: 0;">-<span id="LC1478" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">k2</span> <span class="p">}</span></span>
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1485
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<pre style="margin: 0;">+<span id="LC1485" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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<pre style="margin: 0;">+<span id="LC1486" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1487
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<pre style="margin: 0;">+<span id="LC1487" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tyk</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty'</span></span>
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1488
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<pre style="margin: 0;">+<span id="LC1488" class="line" lang="haskell"> <span class="n" style="color: #333;">cok</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionLKind</span> <span class="n" style="color: #333;">co'</span></span>
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<pre style="margin: 0;">+<span id="LC1489" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">tyk</span> <span class="n" style="color: #333;">cok</span> <span class="p">(</span><span class="n" style="color: #333;">mkCastTyErr</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;">tyk</span> <span class="n" style="color: #333;">cok</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1490" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CastTy</span> <span class="n" style="color: #333;">ty'</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span> <span class="p">}</span></span>
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1491
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<pre style="margin: 0;"> <span id="LC1491" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1492" class="line" lang="haskell"><span class="n" style="color: #333;">lintType</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1481
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<pre style="margin: 0;">-<span id="LC1481" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">ty1</span><span class="p">,</span> <span class="n" style="color: #333;">ty2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1482
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<pre style="margin: 0;">-<span id="LC1482" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkHeteroCoercionType</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC1483" class="line" lang="haskell"></span>
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1484
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<pre style="margin: 0;">-<span id="LC1484" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Stupid type synonyms]</span></span>
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1485
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<pre style="margin: 0;">-<span id="LC1485" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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1486
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<pre style="margin: 0;">-<span id="LC1486" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Consider (#14939)</span></span>
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1487
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<pre style="margin: 0;">-<span id="LC1487" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> type Alg cls ob = ob</span></span>
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<pre style="margin: 0;">-<span id="LC1488" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> f :: forall (cls :: * -> Constraint) (b :: Alg cls *). b</span></span>
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<pre style="margin: 0;">-<span id="LC1489" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1490" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Here 'cls' appears free in b's kind, which would usually be illegal</span></span>
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1491
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<pre style="margin: 0;">-<span id="LC1491" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">(because in (forall a. ty), ty's kind should not mention 'a'). But</span></span>
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1492
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<pre style="margin: 0;">-<span id="LC1492" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">#in this case (Alg cls *) = *, so all is well. Currently we allow</span></span>
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1493
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<pre style="margin: 0;">-<span id="LC1493" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">this, and make Lint expand synonyms where necessary to make it so.</span></span>
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<pre style="margin: 0;">-<span id="LC1494" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1495" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">c.f. TcUnify.occCheckExpand and GHC.Core.Utils.coreAltsType which deal</span></span>
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<pre style="margin: 0;">-<span id="LC1496" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">with the same problem. A single systematic solution eludes me.</span></span>
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1497
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<pre style="margin: 0;">-<span id="LC1497" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;">+<span id="LC1493" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">+<span id="LC1494" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC1495" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1496" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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<pre style="margin: 0;">-<span id="LC1500" class="line" lang="haskell"><span class="n" style="color: #333;">lintTySynFamApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span></span>
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<pre style="margin: 0;">+<span id="LC1497" class="line" lang="haskell"><span class="n" style="color: #333;">lintForAllBody</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintedTyCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;">+<span id="LC1498" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Do the checks for the body of a forall-type</span></span>
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<pre style="margin: 0;">+<span id="LC1499" class="line" lang="haskell"><span class="n" style="color: #333;">lintForAllBody</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">body_ty</span></span>
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1500
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<pre style="margin: 0;">+<span id="LC1500" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tcv</span></span>
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<pre style="margin: 0;">+<span id="LC1501" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkValueType</span> <span class="n" style="color: #333;">body_ty</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">body_ty</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1502" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC1503" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Check for skolem escape</span></span>
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<pre style="margin: 0;">+<span id="LC1504" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Phantom type variables in kinds] in GHC.Core.Type</span></span>
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1505
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<pre style="margin: 0;">+<span id="LC1505" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">body_kind</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">body_ty</span></span>
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1506
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<pre style="margin: 0;">+<span id="LC1506" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">occCheckExpand</span> <span class="p">[</span><span class="n" style="color: #333;">tcv</span><span class="p">]</span> <span class="n" style="color: #333;">body_kind</span> <span class="kr" style="font-weight: 600;">of</span></span>
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1507
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<pre style="margin: 0;">+<span id="LC1507" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1508" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1508
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<pre style="margin: 0;">+<span id="LC1508" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span></span>
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1509
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<pre style="margin: 0;">+<span id="LC1509" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Variable escape in forall:"</span><span class="p">)</span></span>
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1510
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<pre style="margin: 0;">+<span id="LC1510" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"tyvar:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tcv</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1511" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1511
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<pre style="margin: 0;">+<span id="LC1511" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">body_ty</span></span>
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1512
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<pre style="margin: 0;">+<span id="LC1512" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">body_kind</span> <span class="p">])</span></span>
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1513
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<pre style="margin: 0;">+<span id="LC1513" class="line" lang="haskell"> <span class="p">}</span></span>
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1514
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<pre style="margin: 0;">+<span id="LC1514" class="line" lang="haskell"></span>
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1515
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<pre style="margin: 0;">+<span id="LC1515" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">tcv</span></span>
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1516
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<pre style="margin: 0;">+<span id="LC1516" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkValueType</span> <span class="n" style="color: #333;">body_ty</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">body_ty</span><span class="p">)</span></span>
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1517
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<pre style="margin: 0;">+<span id="LC1517" class="line" lang="haskell"></span>
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1518
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<pre style="margin: 0;">+<span id="LC1518" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">tcv</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tyCoVarsOfType</span> <span class="n" style="color: #333;">body_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1519
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<pre style="margin: 0;">+<span id="LC1519" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Covar does not occur in the body:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tcv</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">body_ty</span><span class="p">)</span></span>
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1520
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<pre style="margin: 0;">+<span id="LC1520" class="line" lang="haskell"></span>
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1521
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<pre style="margin: 0;">+<span id="LC1521" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- The kind of (forall cv. th) is liftedTypeKind, so no</span></span>
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1522
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<pre style="margin: 0;">+<span id="LC1522" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- need to check for skolem-escape, as we must do in the tyvar case</span></span>
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1523
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<pre style="margin: 0;">+<span id="LC1523" class="line" lang="haskell"> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC1524" class="line" lang="haskell"></span>
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1525
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<pre style="margin: 0;">+<span id="LC1525" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1526" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1526
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<pre style="margin: 0;">+<span id="LC1526" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non-Tyvar or Non-Covar bound in type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span></span>
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1527
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<pre style="margin: 0;">+<span id="LC1527" class="line" lang="haskell"></span>
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1528
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<pre style="margin: 0;">+<span id="LC1528" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1529
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<pre style="margin: 0;">+<span id="LC1529" class="line" lang="haskell"><span class="n" style="color: #333;">lintTySynFamApp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">InType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCon</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">InType</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span></span>
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1501
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1530
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<pre style="margin: 0;"> <span id="LC1530" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The TyCon is a type synonym or a type family (not a data family)</span></span>
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1502
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<td class="diff-line-num new_line" data-linenumber="1531" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1531
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<pre style="margin: 0;"> <span id="LC1531" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Linting type synonym applications]</span></span>
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1503
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1532
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<pre style="margin: 0;"> <span id="LC1532" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- c.f. TcValidity.check_syn_tc_app</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1511" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1540" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1511,58 +1540,54 @@ lintTySynFamApp report_unsat ty tc tys</td>
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1511
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1540
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<pre style="margin: 0;"> <span id="LC1540" class="line" lang="haskell"> <span class="p">,</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">expanded_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkAppTys</span> <span class="p">(</span><span class="n" style="color: #333;">substTy</span> <span class="p">(</span><span class="n" style="color: #333;">mkTvSubstPrs</span> <span class="n" style="color: #333;">tenv</span><span class="p">)</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="n" style="color: #333;">tys'</span></span>
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1512
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1541
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<pre style="margin: 0;"> <span id="LC1541" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- Kind-check the argument types, but without reporting</span></span>
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<td class="diff-line-num old_line" data-linenumber="1513" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1513
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<td class="diff-line-num new_line" data-linenumber="1542" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1542
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<pre style="margin: 0;"> <span id="LC1542" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- un-saturated type families/synonyms</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1514" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1514
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<pre style="margin: 0;">-<span id="LC1514" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left right">ks</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">setReportUnsat</span> <span class="kt" style="color: #458; font-weight: 600;">False</span> <span class="p">(</span><span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
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1543
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<pre style="margin: 0;">+<span id="LC1543" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left right">tys'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">setReportUnsat</span> <span class="kt" style="color: #458; font-weight: 600;">False</span> <span class="p">(</span><span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
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1515
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1544
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<pre style="margin: 0;"> <span id="LC1544" class="line" lang="haskell"></span>
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1516
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1545
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<pre style="margin: 0;"> <span id="LC1545" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">when</span> <span class="n" style="color: #333;">report_unsat</span> <span class="o" style="font-weight: 600;">$</span></span>
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1517
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1546
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<pre style="margin: 0;"> <span id="LC1546" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">expanded_ty</span></span>
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1518
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1547
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<pre style="margin: 0;"> <span id="LC1547" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="p">}</span></span>
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1519
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1548
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<pre style="margin: 0;"> <span id="LC1548" class="line" lang="haskell"></span>
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1520
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<pre style="margin: 0;">-<span id="LC1520" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">tys</span> <span class="p">`</span><span class="n" style="color: #333;">zip</span><span class="p">`</span> <span class="n" style="color: #333;">ks</span><span class="p">)</span> <span class="p">}</span></span>
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1549
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<pre style="margin: 0;">+<span id="LC1549" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="n" style="color: #333;">tys'</span></span>
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1550
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<pre style="margin: 0;">+<span id="LC1550" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">tys'</span><span class="p">)</span> <span class="p">}</span></span>
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1521
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1551
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<pre style="margin: 0;"> <span id="LC1551" class="line" lang="haskell"></span>
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1522
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1552
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<pre style="margin: 0;"> <span id="LC1552" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Otherwise this must be a type family</span></span>
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1523
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1553
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<pre style="margin: 0;"> <span id="LC1553" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1524
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<pre style="margin: 0;">-<span id="LC1524" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ks</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span></span>
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1525
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<pre style="margin: 0;">-<span id="LC1525" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">tys</span> <span class="p">`</span><span class="n" style="color: #333;">zip</span><span class="p">`</span> <span class="n" style="color: #333;">ks</span><span class="p">)</span> <span class="p">}</span></span>
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1526
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<pre style="margin: 0;">-<span id="LC1526" class="line" lang="haskell"></span>
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1527
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<pre style="margin: 0;">-<span id="LC1527" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1528
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<pre style="margin: 0;">-<span id="LC1528" class="line" lang="haskell"><span class="n" style="color: #333;">lintKind</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1529
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<pre style="margin: 0;">-<span id="LC1529" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1530
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<pre style="margin: 0;">-<span id="LC1530" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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1531
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<pre style="margin: 0;">-<span id="LC1531" class="line" lang="haskell"><span class="n" style="color: #333;">lintKind</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">sk</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">k</span></span>
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1532
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<pre style="margin: 0;">-<span id="LC1532" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">sk</span><span class="p">)</span></span>
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1533
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<pre style="margin: 0;">-<span id="LC1533" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Ill-kinded kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span><span class="p">)</span></span>
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1534
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<pre style="margin: 0;">-<span id="LC1534" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"has kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">sk</span><span class="p">)))</span> <span class="p">}</span></span>
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1554
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<pre style="margin: 0;">+<span id="LC1554" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">tys'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">tys</span></span>
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1555
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<pre style="margin: 0;">+<span id="LC1555" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="n" style="color: #333;">tys'</span></span>
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1556
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<pre style="margin: 0;">+<span id="LC1556" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">tys'</span><span class="p">)</span> <span class="p">}</span></span>
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1535
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1557
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<pre style="margin: 0;"> <span id="LC1557" class="line" lang="haskell"></span>
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1536
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1558
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<pre style="margin: 0;"> <span id="LC1558" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1537
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1559
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<pre style="margin: 0;"> <span id="LC1559" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Confirms that a type is really *, #, Constraint etc</span></span>
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1538
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<pre style="margin: 0;">-<span id="LC1538" class="line" lang="haskell"><span class="n" style="color: #333;">checkValue<span class="idiff left">Kind</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">OutKind</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1539
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<pre style="margin: 0;">-<span id="LC1539" class="line" lang="haskell"><span class="n" style="color: #333;">checkValue<span class="idiff left">Kind</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">k</span></span> <span class="n" style="color: #333;">doc</span></span>
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1540
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<pre style="margin: 0;">-<span id="LC1540" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k</span><span class="p">)</span></span>
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1541
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<pre style="margin: 0;">-<span id="LC1541" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non-*-like kind when *-like expected:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">$$</span></span>
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1560
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<pre style="margin: 0;">+<span id="LC1560" class="line" lang="haskell"><span class="n" style="color: #333;">checkValue<span class="idiff left">Type</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">::</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedType</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1561
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<pre style="margin: 0;">+<span id="LC1561" class="line" lang="haskell"><span class="n" style="color: #333;">checkValue<span class="idiff left">Type</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">ty</span></span> <span class="n" style="color: #333;">doc</span></span>
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1562
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<pre style="margin: 0;">+<span id="LC1562" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k<span class="idiff left right">ind</span></span><span class="p">)</span></span>
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1563
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<pre style="margin: 0;">+<span id="LC1563" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non-*-like kind when *-like expected:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k<span class="idiff left right">ind</span></span> <span class="o" style="font-weight: 600;">$$</span></span>
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1542
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1564
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<pre style="margin: 0;"> <span id="LC1564" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"when checking"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">doc</span><span class="p">)</span></span>
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1565
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<pre style="margin: 0;">+<span id="LC1565" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1566
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<pre style="margin: 0;">+<span id="LC1566" class="line" lang="haskell"> <span class="n" style="color: #333;">kind</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty</span></span>
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1543
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1567
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<pre style="margin: 0;"> <span id="LC1567" class="line" lang="haskell"></span>
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1568
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<pre style="margin: 0;"> <span id="LC1568" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1545
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<pre style="margin: 0;">-<span id="LC1545" class="line" lang="haskell"><span class="n" style="color: #333;">lintArrow</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Linted<span class="idiff left">Kind</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedKind</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedKind</span></span></span>
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1569
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<pre style="margin: 0;">+<span id="LC1569" class="line" lang="haskell"><span class="n" style="color: #333;">lintArrow</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Linted<span class="idiff left">Type</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span>
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1546
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1570
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<pre style="margin: 0;"> <span id="LC1570" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1547
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1571
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<pre style="margin: 0;"> <span id="LC1571" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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1548
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<pre style="margin: 0;">-<span id="LC1548" class="line" lang="haskell"><span class="n" style="color: #333;">lintArrow</span> <span class="n" style="color: #333;">what</span> <span class="n" style="color: #333;"><span class="idiff left">k1</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">k</span>2</span> <span class="c1" style="color: #998; font-style: italic;">-- Eg lintArrow "type or kind `blah'" k1 k2</span></span>
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1572
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<pre style="margin: 0;">+<span id="LC1572" class="line" lang="haskell"><span class="n" style="color: #333;">lintArrow</span> <span class="n" style="color: #333;">what</span> <span class="n" style="color: #333;"><span class="idiff left">t1</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">t</span>2</span> <span class="c1" style="color: #998; font-style: italic;">-- Eg lintArrow "type or kind `blah'" k1 k2</span></span>
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1549
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1573
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<pre style="margin: 0;"> <span id="LC1573" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- or lintArrow "coercion `blah'" k1 k2</span></span>
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1550
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1574
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<pre style="margin: 0;"> <span id="LC1574" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k1</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"argument"</span><span class="p">)</span> <span class="n" style="color: #333;">k1</span><span class="p">))</span></span>
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1551
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<pre style="margin: 0;">-<span id="LC1551" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"result"</span><span class="p">)</span> <span class="n" style="color: #333;">k2</span><span class="p">))</span></span>
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1552
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<pre style="margin: 0;">-<span id="LC1552" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">liftedTypeKind</span> <span class="p">}</span></span>
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1575
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<pre style="margin: 0;">+<span id="LC1575" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"result"</span><span class="p">)</span> <span class="n" style="color: #333;">k2</span><span class="p">))</span> <span class="p">}</span></span>
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1553
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1576
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<pre style="margin: 0;"> <span id="LC1576" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1577
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<pre style="margin: 0;">+<span id="LC1577" class="line" lang="haskell"> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">t1</span></span>
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1578
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<pre style="margin: 0;">+<span id="LC1578" class="line" lang="haskell"> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">t2</span></span>
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1554
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1579
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<pre style="margin: 0;"> <span id="LC1579" class="line" lang="haskell"> <span class="n" style="color: #333;">msg</span> <span class="n" style="color: #333;">ar</span> <span class="n" style="color: #333;">k</span></span>
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1555
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1580
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<pre style="margin: 0;"> <span id="LC1580" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Ill-kinded"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ar</span><span class="p">)</span></span>
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1556
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1581
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<pre style="margin: 0;"> <span id="LC1581" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"in"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">what</span><span class="p">)</span></span>
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1557
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1582
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<pre style="margin: 0;"> <span id="LC1582" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">what</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"kind:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span> <span class="p">]</span></span>
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1558
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1583
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<pre style="margin: 0;"> <span id="LC1583" class="line" lang="haskell"></span>
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1559
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1584
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<pre style="margin: 0;"> <span id="LC1584" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------</span></span>
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1560
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<pre style="margin: 0;">-<span id="LC1560" class="line" lang="haskell"><span class="n" style="color: #333;">lint_ty_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[<span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff">,</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedKind</span></span><span class="p"><span class="idiff">)]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedKind</span></span></span>
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1585
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<pre style="margin: 0;">+<span id="LC1585" class="line" lang="haskell"><span class="n" style="color: #333;">lint_ty_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span>
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1561
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1586
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<pre style="margin: 0;"> <span id="LC1586" class="line" lang="haskell"><span class="n" style="color: #333;">lint_ty_app</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">k</span> <span class="n" style="color: #333;">tys</span></span>
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1562
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1587
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<pre style="margin: 0;"> <span id="LC1587" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lint_app</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"type"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span> <span class="n" style="color: #333;">k</span> <span class="n" style="color: #333;">tys</span></span>
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1563
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1588
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<pre style="margin: 0;"> <span id="LC1588" class="line" lang="haskell"></span>
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1564
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1589
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<pre style="margin: 0;"> <span id="LC1589" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------------</span></span>
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<pre style="margin: 0;">-<span id="LC1565" class="line" lang="haskell"><span class="n" style="color: #333;">lint_co_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[<span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff">,</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedKind</span></span><span class="p"><span class="idiff">)]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedKind</span></span></span>
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<pre style="margin: 0;">+<span id="LC1590" class="line" lang="haskell"><span class="n" style="color: #333;">lint_co_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span>
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1591
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<pre style="margin: 0;"> <span id="LC1591" class="line" lang="haskell"><span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">k</span> <span class="n" style="color: #333;">tys</span></span>
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1567
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1592
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<pre style="margin: 0;"> <span id="LC1592" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lint_app</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span> <span class="n" style="color: #333;">k</span> <span class="n" style="color: #333;">tys</span></span>
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1593
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<pre style="margin: 0;"> <span id="LC1593" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1574,42 +1599,45 @@ lintTyLit (NumTyLit n)</td>
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1574
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1599
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<pre style="margin: 0;"> <span id="LC1599" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span> <span class="n" style="color: #333;">msg</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Negative type literal:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">integer</span> <span class="n" style="color: #333;">n</span></span>
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1575
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1600
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<pre style="margin: 0;"> <span id="LC1600" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyLit</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">StrTyLit</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1576
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1601
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<pre style="margin: 0;"> <span id="LC1601" class="line" lang="haskell"></span>
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1577
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<pre style="margin: 0;">-<span id="LC1577" class="line" lang="haskell"><span class="n" style="color: #333;">lint_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[<span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff">,</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedKind</span></span><span class="p"><span class="idiff">)]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Kind</span></span></span>
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1602
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<pre style="margin: 0;">+<span id="LC1602" class="line" lang="haskell"><span class="n" style="color: #333;">lint_app</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span>
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1578
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1603
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<pre style="margin: 0;"> <span id="LC1603" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- (lint_app d fun_kind arg_tys)</span></span>
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1579
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1604
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<pre style="margin: 0;"> <span id="LC1604" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- We have an application (f arg_ty1 .. arg_tyn),</span></span>
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1580
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1605
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<pre style="margin: 0;"> <span id="LC1605" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- where f :: fun_kind</span></span>
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<pre style="margin: 0;">-<span id="LC1581" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Takes care of linting the OutTypes</span></span>
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1582
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1606
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<pre style="margin: 0;"> <span id="LC1606" class="line" lang="haskell"></span>
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1583
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1607
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<pre style="margin: 0;"> <span id="LC1607" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1584
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1608
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<pre style="margin: 0;"> <span id="LC1608" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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<pre style="margin: 0;">-<span id="LC1585" class="line" lang="haskell"><span class="n" style="color: #333;">lint_app</span> <span class="n" style="color: #333;">doc</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;"><span class="idiff left right">ka</span>s</span></span>
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<pre style="margin: 0;">+<span id="LC1609" class="line" lang="haskell"><span class="n" style="color: #333;">lint_app</span> <span class="n" style="color: #333;">doc</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;"><span class="idiff left right">arg_ty</span>s</span></span>
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1610
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<pre style="margin: 0;"> <span id="LC1610" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getInScope</span></span>
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1587
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1611
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<pre style="margin: 0;"> <span id="LC1611" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We need the in_scope set to satisfy the invariant in</span></span>
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1588
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1612
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<pre style="margin: 0;"> <span id="LC1612" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Note [The substitution invariant] in GHC.Core.TyCo.Subst</span></span>
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1589
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<pre style="margin: 0;">-<span id="LC1589" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">foldlM</span> <span class="p">(</span><span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span><span class="p">)</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;">kas</span> <span class="p">}</span></span>
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1613
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<pre style="margin: 0;">+<span id="LC1613" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">foldlM</span> <span class="p">(</span><span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span><span class="p">)</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;">arg_tys</span></span>
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1614
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<pre style="margin: 0;">+<span id="LC1614" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="p">}</span></span>
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1590
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1615
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<pre style="margin: 0;"> <span id="LC1615" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1591
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1616
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<pre style="margin: 0;"> <span id="LC1616" class="line" lang="haskell"> <span class="n" style="color: #333;">fail_msg</span> <span class="n" style="color: #333;">extra</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Kind application error in"</span><span class="p">)</span> <span class="mi" style="color: #099;">2</span> <span class="n" style="color: #333;">doc</span></span>
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1592
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1617
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<pre style="margin: 0;"> <span id="LC1617" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Function kind ="</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kfn</span><span class="p">)</span></span>
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1593
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<pre style="margin: 0;">-<span id="LC1593" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Arg <span class="idiff left">kinds ="</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><+></span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">ka</span>s</span><span class="p">)</span></span>
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1618
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<pre style="margin: 0;">+<span id="LC1618" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Arg <span class="idiff left">types ="</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><+></span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">arg_ty</span>s</span><span class="p">)</span></span>
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1619
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<pre style="margin: 0;"> <span id="LC1619" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">extra</span> <span class="p">]</span></span>
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1620
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<pre style="margin: 0;"> <span id="LC1620" class="line" lang="haskell"></span>
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1596
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<pre style="margin: 0;">-<span id="LC1596" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;">t<span class="idiff left right">k</span>a</span></span>
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1621
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<pre style="margin: 0;">+<span id="LC1621" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;">ta</span></span>
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1597
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1622
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<pre style="margin: 0;"> <span id="LC1622" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">kfn'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">coreView</span> <span class="n" style="color: #333;">kfn</span></span>
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1598
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<pre style="margin: 0;">-<span id="LC1598" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="n" style="color: #333;">kfn'</span> <span class="n" style="color: #333;">t<span class="idiff left right">k</span>a</span></span>
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1623
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<pre style="margin: 0;">+<span id="LC1623" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="n" style="color: #333;">kfn'</span> <span class="n" style="color: #333;">ta</span></span>
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1599
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1624
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<pre style="margin: 0;"> <span id="LC1624" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1600" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunTy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">kfa</span> <span class="n" style="color: #333;">kfb</span><span class="p">)</span> <span class="n" style="color: #333;">tka</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span><span class="n" style="color: #333;">ka</span><span class="p">)</span></span>
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1601
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<pre style="margin: 0;">-<span id="LC1601" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">ka</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">kfa</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1602
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<pre style="margin: 0;">-<span id="LC1602" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Fun:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kfa</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tka</span><span class="p">)))</span></span>
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1625
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<pre style="margin: 0;">+<span id="LC1625" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">fun_kind</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunTy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">kfa</span> <span class="n" style="color: #333;">kfb</span><span class="p">)</span> <span class="n" style="color: #333;">ta</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1626" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1626
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<pre style="margin: 0;">+<span id="LC1626" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">ka</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ta</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1627" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1627
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<pre style="margin: 0;">+<span id="LC1627" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">ka</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">kfa</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1628" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1628
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<pre style="margin: 0;">+<span id="LC1628" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Fun:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">fun_kind</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ta</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ka</span><span class="p">)))</span></span>
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1603
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1629
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<pre style="margin: 0;"> <span id="LC1629" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">kfb</span> <span class="p">}</span></span>
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1604
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1630
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<pre style="margin: 0;"> <span id="LC1630" class="line" lang="haskell"></span>
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1605
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<td class="diff-line-num new_line old" data-linenumber="1631" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1605" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">kv</span> <span class="n" style="color: #333;">_vis</span><span class="p">)</span> <span class="n" style="color: #333;">kfn</span><span class="p">)</span> <span class="n" style="color: #333;">t<span class="idiff left">ka</span></span><span class="o" style="font-weight: 600;"><span class="idiff">@</span></span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">ta</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">ka</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<td class="diff-line-num new old_line" data-linenumber="1606" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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1631
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<pre style="margin: 0;">+<span id="LC1631" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="n" style="color: #333;">in_scope</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Bndr</span> <span class="n" style="color: #333;">kv</span> <span class="n" style="color: #333;">_vis</span><span class="p">)</span> <span class="n" style="color: #333;">kfn</span><span class="p">)</span> <span class="n" style="color: #333;">t<span class="idiff left right">a</span></span></span>
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1606
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1632
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<pre style="margin: 0;"> <span id="LC1632" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">kv_kind</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">kv</span></span>
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1633
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<pre style="margin: 0;">+<span id="LC1633" class="line" lang="haskell"> <span class="n" style="color: #333;">ka</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ta</span></span>
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1607
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<td class="diff-line-num new_line" data-linenumber="1634" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1634
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<pre style="margin: 0;"> <span id="LC1634" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">ka</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">kv_kind</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1608
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<pre style="margin: 0;">-<span id="LC1608" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kv</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kv_kind</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tka</span><span class="p">)))</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1609" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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1635
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<pre style="margin: 0;">+<span id="LC1635" class="line" lang="haskell"> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Forall:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kv</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kv_kind</span> <span class="o" style="font-weight: 600;">$$</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1636" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1636
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<pre style="margin: 0;">+<span id="LC1636" class="line" lang="haskell"> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ta</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ka</span><span class="p">)))</span></span>
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1609
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1637
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<pre style="margin: 0;"> <span id="LC1637" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">substTy</span> <span class="p">(</span><span class="n" style="color: #333;">extendTCvSubst</span> <span class="p">(</span><span class="n" style="color: #333;">mkEmptyTCvSubst</span> <span class="n" style="color: #333;">in_scope</span><span class="p">)</span> <span class="n" style="color: #333;">kv</span> <span class="n" style="color: #333;">ta</span><span class="p">)</span> <span class="n" style="color: #333;">kfn</span> <span class="p">}</span></span>
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1610
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1638
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<pre style="margin: 0;"> <span id="LC1638" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1611" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;"><span class="idiff left right">k</span>a</span></span>
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1612
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<pre style="margin: 0;">-<span id="LC1612" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Not a fun:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kfn</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">k</span>a</span><span class="p">)))</span></span>
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1639
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<pre style="margin: 0;">+<span id="LC1639" class="line" lang="haskell"> <span class="n" style="color: #333;">go_app</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">kfn</span> <span class="n" style="color: #333;"><span class="idiff left right">t</span>a</span></span>
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1640
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<pre style="margin: 0;">+<span id="LC1640" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">fail_msg</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Not a fun:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">kfn</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">t</span>a</span><span class="p">)))</span></span>
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1641
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<pre style="margin: 0;"> <span id="LC1641" class="line" lang="haskell"></span>
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1614
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1642
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<pre style="margin: 0;"> <span id="LC1642" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- *********************************************************************</span></span>
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1643
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<pre style="margin: 0;"> <span id="LC1643" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1617,7 +1645,7 @@ lint_app doc kfn kas</td>
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1617
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1645
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<pre style="margin: 0;"> <span id="LC1645" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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1646
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<pre style="margin: 0;"> <span id="LC1646" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">********************************************************************* -}</span></span>
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1647
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<pre style="margin: 0;"> <span id="LC1647" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1620" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreRule</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Out</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreRule</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1648
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<pre style="margin: 0;">+<span id="LC1648" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreRule</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Linted</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CoreRule</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1621
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1649
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<pre style="margin: 0;"> <span id="LC1649" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoreRule</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BuiltinRule</span> <span class="p">{})</span></span>
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1622
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1650
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<pre style="margin: 0;"> <span id="LC1650" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="c1" style="color: #998; font-style: italic;">-- Don't bother</span></span>
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1651
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<pre style="margin: 0;"> <span id="LC1651" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1710,68 +1738,94 @@ Note [Rules and join points] in OccurAnal for further discussion.</td>
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1738
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<pre style="margin: 0;"> <span id="LC1738" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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1739
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<pre style="margin: 0;"> <span id="LC1739" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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1740
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<pre style="margin: 0;"> <span id="LC1740" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1713" class="line" lang="haskell"><span class="n" style="color: #333;">lintInCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InCoercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LintedKind</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Role</span><span class="p">)</span></span>
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1714
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<pre style="margin: 0;">-<span id="LC1714" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Check the coercion, and apply the substitution to it</span></span>
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1715
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<pre style="margin: 0;">-<span id="LC1715" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Linting type lets]</span></span>
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1716
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<pre style="margin: 0;">-<span id="LC1716" class="line" lang="haskell"><span class="n" style="color: #333;">lintInCo</span> <span class="n" style="color: #333;">co</span></span>
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1717
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<pre style="margin: 0;">-<span id="LC1717" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InCo</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1718
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<pre style="margin: 0;">-<span id="LC1718" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">applySubstCo</span> <span class="n" style="color: #333;">co</span></span>
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1719
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<pre style="margin: 0;">-<span id="LC1719" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co'</span> <span class="p">}</span></span>
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1741
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<pre style="margin: 0;">+<span id="LC1741" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Asymptotic efficiency]</span></span>
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1742
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<pre style="margin: 0;">+<span id="LC1742" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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1743
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<pre style="margin: 0;">+<span id="LC1743" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">When linting coercions (and types actually) we return a linted</span></span>
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1744
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<pre style="margin: 0;">+<span id="LC1744" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">(substituted) coercion. Then we often have to take the coercionKind of</span></span>
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1745
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<pre style="margin: 0;">+<span id="LC1745" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">that returned coercion. If we get long chains, that can be asymptotically</span></span>
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1746
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<pre style="margin: 0;">+<span id="LC1746" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">inefficient, notably in</span></span>
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1747
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<pre style="margin: 0;">+<span id="LC1747" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* TransCo</span></span>
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1748
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<pre style="margin: 0;">+<span id="LC1748" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* InstCo</span></span>
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1749
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<pre style="margin: 0;">+<span id="LC1749" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* NthCo (cf #9233)</span></span>
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1750
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<pre style="margin: 0;">+<span id="LC1750" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* LRCo</span></span>
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1751
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<pre style="margin: 0;">+<span id="LC1751" class="line" lang="haskell"></span>
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1752
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<pre style="margin: 0;">+<span id="LC1752" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">But the code is simple. And this is only Lint. Let's wait to see if</span></span>
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1753
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<pre style="margin: 0;">+<span id="LC1753" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the bad perf bites us in practice.</span></span>
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1754
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<pre style="margin: 0;">+<span id="LC1754" class="line" lang="haskell"></span>
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1755
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<pre style="margin: 0;">+<span id="LC1755" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">A solution would be to return the kind and role of the coercion,</span></span>
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1756
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<pre style="margin: 0;">+<span id="LC1756" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">as well as the linted coercion. Or perhaps even *only* the kind and role,</span></span>
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1757
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<pre style="margin: 0;">+<span id="LC1757" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">which is what used to happen. But that proved tricky and error prone</span></span>
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1758
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<pre style="margin: 0;">+<span id="LC1758" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">(#17923), so now we return the coercion.</span></span>
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1759
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<pre style="margin: 0;">+<span id="LC1759" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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1760
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<pre style="margin: 0;">+<span id="LC1760" class="line" lang="haskell"></span>
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1720
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1761
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<pre style="margin: 0;"> <span id="LC1761" class="line" lang="haskell"></span>
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1721
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1762
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<pre style="margin: 0;"> <span id="LC1762" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- lints a coercion, confirming that its lh kind and its rh kind are both *</span></span>
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1722
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1763
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<pre style="margin: 0;"> <span id="LC1763" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- also ensures that the role is Nominal</span></span>
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1723
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<pre style="margin: 0;">-<span id="LC1723" class="line" lang="haskell"><span class="n" style="color: #333;">lintStarCoercion</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutCoercion</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintedType</span></span><span class="p"><span class="idiff right">)</span></span></span>
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1764
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<pre style="margin: 0;">+<span id="LC1764" class="line" lang="haskell"><span class="n" style="color: #333;">lintStarCoercion</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InCoercion</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">LintM</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">LintedCoercion</span></span></span>
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1724
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1765
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<pre style="margin: 0;"> <span id="LC1765" class="line" lang="haskell"><span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">g</span></span>
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1725
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<pre style="margin: 0;">-<span id="LC1725" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">g</span></span>
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1726
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<pre style="margin: 0;">-<span id="LC1726" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k1</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the kind of the left type in"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">g</span><span class="p">)</span></span>
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1727
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<pre style="margin: 0;">-<span id="LC1727" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the kind of the right type in"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">g</span><span class="p">)</span></span>
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1728
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<pre style="margin: 0;">-<span id="LC1728" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">g</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r</span></span>
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1729
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<pre style="margin: 0;">-<span id="LC1729" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">)</span> <span class="p">}</span></span>
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1730
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<pre style="margin: 0;">-<span id="LC1730" class="line" lang="haskell"></span>
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1731
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<pre style="margin: 0;">-<span id="LC1731" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutCoercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LintedKind</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedKind</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Role</span><span class="p">)</span></span>
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1732
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<pre style="margin: 0;">-<span id="LC1732" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Check the kind of a coercion term, returning the kind</span></span>
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1733
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<pre style="margin: 0;">-<span id="LC1733" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Post-condition: the returned OutTypes are lint-free</span></span>
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1734
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<pre style="margin: 0;">-<span id="LC1734" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--</span></span>
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1735
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<pre style="margin: 0;">-<span id="LC1735" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If lintCoercion co = (k1, k2, s1, s2, r)</span></span>
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<pre style="margin: 0;">-<span id="LC1736" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- then co :: s1 ~r s2</span></span>
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<pre style="margin: 0;">-<span id="LC1737" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- s1 :: k1</span></span>
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1738
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<pre style="margin: 0;">-<span id="LC1738" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- s2 :: k2</span></span>
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1739
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<pre style="margin: 0;">-<span id="LC1739" class="line" lang="haskell"></span>
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1766
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<pre style="margin: 0;">+<span id="LC1766" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">g'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">g</span></span>
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1767
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<pre style="margin: 0;">+<span id="LC1767" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">t1</span> <span class="n" style="color: #333;">t2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">g'</span></span>
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1768
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<pre style="margin: 0;">+<span id="LC1768" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueType</span> <span class="n" style="color: #333;">t1</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the kind of the left type in"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">g</span><span class="p">)</span></span>
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1769
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<pre style="margin: 0;">+<span id="LC1769" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueType</span> <span class="n" style="color: #333;">t2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the kind of the right type in"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">g</span><span class="p">)</span></span>
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1770
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<pre style="margin: 0;">+<span id="LC1770" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">g</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">g</span><span class="p">)</span></span>
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1771
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<pre style="margin: 0;">+<span id="LC1771" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">g'</span> <span class="p">}</span></span>
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1772
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<pre style="margin: 0;">+<span id="LC1772" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC1773" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InCoercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">LintedCoercion</span></span>
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1774
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<pre style="margin: 0;"> <span id="LC1774" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If you edit this function, you may need to update the GHC formalism</span></span>
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1741
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<pre style="margin: 0;"> <span id="LC1775" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [GHC Formalism]</span></span>
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1776
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<pre style="margin: 0;">+<span id="LC1776" class="line" lang="haskell"></span>
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1777
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<pre style="margin: 0;">+<span id="LC1777" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoVarCo</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1778
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<pre style="margin: 0;">+<span id="LC1778" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1779
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<pre style="margin: 0;">+<span id="LC1779" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad CoVarCo:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1780
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<pre style="margin: 0;">+<span id="LC1780" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"With offending type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv</span><span class="p">)))</span></span>
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1781
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<pre style="margin: 0;">+<span id="LC1781" class="line" lang="haskell"></span>
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1782
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<pre style="margin: 0;">+<span id="LC1782" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1783
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<pre style="margin: 0;">+<span id="LC1783" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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1784
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<pre style="margin: 0;">+<span id="LC1784" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookupCoVar</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">cv</span> <span class="kr" style="font-weight: 600;">of</span></span>
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1785
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<pre style="margin: 0;">+<span id="LC1785" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">linted_co</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">linted_co</span> <span class="p">;</span></span>
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1786
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<pre style="margin: 0;">+<span id="LC1786" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="c1" style="color: #998; font-style: italic;">-- lintCoBndr always extends the substitition</span></span>
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1787
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<pre style="margin: 0;">+<span id="LC1787" class="line" lang="haskell"> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span></span>
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1788
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<pre style="margin: 0;">+<span id="LC1788" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"The coercion variable"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprBndr</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1789
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<pre style="margin: 0;">+<span id="LC1789" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"is out of scope"</span><span class="p">)</span></span>
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1790
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<pre style="margin: 0;">+<span id="LC1790" class="line" lang="haskell"> <span class="p">}</span></span>
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1791
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<pre style="margin: 0;">+<span id="LC1791" class="line" lang="haskell"></span>
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1792
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<pre style="margin: 0;">+<span id="LC1792" class="line" lang="haskell"></span>
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1742
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1793
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<pre style="margin: 0;"> <span id="LC1793" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Refl</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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1743
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<pre style="margin: 0;">-<span id="LC1743" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">k</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1744
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<pre style="margin: 0;">-<span id="LC1744" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">k</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Nominal</span></span><span class="p">)</span> <span class="p">}</span></span>
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1794
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<pre style="margin: 0;">+<span id="LC1794" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">ty'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1795
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<pre style="margin: 0;">+<span id="LC1795" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Refl</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">ty'</span></span><span class="p">)</span> <span class="p">}</span></span>
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1745
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1796
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<pre style="margin: 0;"> <span id="LC1796" class="line" lang="haskell"></span>
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1746
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1797
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<pre style="margin: 0;"> <span id="LC1797" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">ty</span> <span class="kt" style="color: #458; font-weight: 600;">MRefl</span><span class="p">)</span></span>
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1747
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<pre style="margin: 0;">-<span id="LC1747" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">k</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1748
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<pre style="margin: 0;">-<span id="LC1748" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">k</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r</span></span><span class="p">)</span> <span class="p">}</span></span>
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1798
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<pre style="margin: 0;">+<span id="LC1798" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">ty'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1799
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<pre style="margin: 0;">+<span id="LC1799" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">GRefl</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty'</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">MRefl</span></span><span class="p">)</span> <span class="p">}</span></span>
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1749
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1800
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<pre style="margin: 0;"> <span id="LC1800" class="line" lang="haskell"></span>
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1750
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1801
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<pre style="margin: 0;"> <span id="LC1801" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MCo</span> <span class="n" style="color: #333;">co</span><span class="p">))</span></span>
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1751
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<pre style="margin: 0;">-<span id="LC1751" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1752
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<pre style="margin: 0;">-<span id="LC1752" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">r'</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1753
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<pre style="margin: 0;">-<span id="LC1753" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k</span> <span class="n" style="color: #333;">k1</span></span>
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1754
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<pre style="margin: 0;">-<span id="LC1754" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"GRefl coercion kind mis-match:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1755
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<pre style="margin: 0;">-<span id="LC1755" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k1</span><span class="p">]))</span></span>
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1756
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<pre style="margin: 0;">-<span id="LC1756" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r'</span></span>
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1757
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<pre style="margin: 0;">-<span id="LC1757" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">ty</span><span class="p">,</span> <span class="n" style="color: #333;">mkCastTy</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">co</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span></span>
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1802
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<pre style="margin: 0;">+<span id="LC1802" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty</span></span>
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1803
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<pre style="margin: 0;">+<span id="LC1803" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1804
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<pre style="margin: 0;">+<span id="LC1804" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tk</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty'</span></span>
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1805
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<pre style="margin: 0;">+<span id="LC1805" class="line" lang="haskell"> <span class="n" style="color: #333;">tl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionLKind</span> <span class="n" style="color: #333;">co'</span></span>
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1806
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<pre style="margin: 0;">+<span id="LC1806" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">tk</span> <span class="n" style="color: #333;">tl</span> <span class="o" style="font-weight: 600;">$</span></span>
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1807
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<pre style="margin: 0;">+<span id="LC1807" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"GRefl coercion kind mis-match:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1808
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<pre style="margin: 0;">+<span id="LC1808" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty'</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tk</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tl</span><span class="p">])</span></span>
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1809
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<pre style="margin: 0;">+<span id="LC1809" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co'</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span></span>
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1810
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<pre style="margin: 0;">+<span id="LC1810" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">ty'</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MCo</span> <span class="n" style="color: #333;">co'</span><span class="p">))</span> <span class="p">}</span></span>
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<td class="diff-line-num old_line" data-linenumber="1758" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1758
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1811
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<pre style="margin: 0;"> <span id="LC1811" class="line" lang="haskell"></span>
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1759
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<td class="diff-line-num new_line" data-linenumber="1812" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1812
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<pre style="margin: 0;"> <span id="LC1812" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConAppCo</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
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1760
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<td class="diff-line-num new_line" data-linenumber="1813" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1813
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<pre style="margin: 0;"> <span id="LC1813" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">tc</span> <span class="p">`</span><span class="n" style="color: #333;">hasKey</span><span class="p">`</span> <span class="n" style="color: #333;">funTyConKey</span></span>
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1761
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<td class="diff-line-num new_line" data-linenumber="1814" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1814
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<pre style="margin: 0;"> <span id="LC1814" class="line" lang="haskell"> <span class="p">,</span> <span class="p">[</span><span class="n" style="color: #333;">_rep1</span><span class="p">,</span><span class="n" style="color: #333;">_rep2</span><span class="p">,</span><span class="n" style="color: #333;">_co1</span><span class="p">,</span><span class="n" style="color: #333;">_co2</span><span class="p">]</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">cos</span></span>
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1762
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<td class="diff-line-num new_line old" data-linenumber="1815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1762" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">do</span></span><span class="idiff"> </span><span class="p"><span class="idiff">{</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Saturated TyConAppCo (->):"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1763" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1763
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<td class="diff-line-num new_line old" data-linenumber="1815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1763" class="line" lang="haskell"> <span class="idiff left"> </span><span class="p"><span class="idiff">}</span></span><span class="idiff right"> </span><span class="c1" style="color: #998; font-style: italic;">-- All saturated TyConAppCos should be FunCos</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1764" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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1815
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<pre style="margin: 0;">+<span id="LC1815" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Saturated TyConAppCo (->):"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1816
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<pre style="margin: 0;">+<span id="LC1816" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- All saturated TyConAppCos should be FunCos</span></span>
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1764
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1817
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<pre style="margin: 0;"> <span id="LC1817" class="line" lang="haskell"></span>
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1765
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<td class="diff-line-num new_line" data-linenumber="1818" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1818
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<pre style="margin: 0;"> <span id="LC1818" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">synTyConDefn_maybe</span> <span class="n" style="color: #333;">tc</span></span>
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<td class="diff-line-num old_line" data-linenumber="1766" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1766
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<td class="diff-line-num new_line" data-linenumber="1819" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1819
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<pre style="margin: 0;"> <span id="LC1819" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Synonym in TyConAppCo:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1767
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1820
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<pre style="margin: 0;"> <span id="LC1820" class="line" lang="haskell"></span>
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1768
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<td class="diff-line-num new_line" data-linenumber="1821" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1821
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<pre style="margin: 0;"> <span id="LC1821" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1769
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<td class="diff-line-num new_line" data-linenumber="1822" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1822
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<pre style="margin: 0;"> <span id="LC1822" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">checkTyCon</span> <span class="n" style="color: #333;">tc</span></span>
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1770
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<td class="diff-line-num new_line old" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1770" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k's</span><span class="p">,</span> <span class="n" style="color: #333;">ks</span><span class="p">,</span> <span class="n" style="color: #333;">ss</span><span class="p">,</span> <span class="n" style="color: #333;">ts</span><span class="p">,</span> <span class="n" style="color: #333;">rs</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapAndUnzip5M</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">cos</span></span>
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1771
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<td class="diff-line-num new_line old" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1771" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ss</span> <span class="p">`</span><span class="n" style="color: #333;">zip</span><span class="p">`</span> <span class="n" style="color: #333;">k's</span><span class="p">)</span></span>
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1772
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<td class="diff-line-num new_line old" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1772" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ts</span> <span class="p">`</span><span class="n" style="color: #333;">zip</span><span class="p">`</span> <span class="n" style="color: #333;">ks</span><span class="p">)</span></span>
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1773
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<td class="diff-line-num new_line old" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1773" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">zipWith3M</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">cos</span> <span class="p">(</span><span class="n" style="color: #333;">tyConRolesX</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="n" style="color: #333;">rs</span></span>
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1774
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<pre style="margin: 0;">-<span id="LC1774" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k'</span><span class="p">,</span> <span class="n" style="color: #333;">k</span><span class="p">,</span> <span class="n" style="color: #333;">mkTyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">ss</span><span class="p">,</span> <span class="n" style="color: #333;">mkTyConApp</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">ts</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1823
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<pre style="margin: 0;">+<span id="LC1823" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">cos'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">cos</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1824" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1824
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<pre style="margin: 0;">+<span id="LC1824" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="n" style="color: #333;">co_kinds</span><span class="p">,</span> <span class="n" style="color: #333;">co_roles</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">unzip</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">coercionKindRole</span> <span class="n" style="color: #333;">cos'</span><span class="p">)</span></span>
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1825
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<pre style="margin: 0;">+<span id="LC1825" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">pFst</span> <span class="n" style="color: #333;">co_kinds</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1826" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1826
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<pre style="margin: 0;">+<span id="LC1826" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">tyConKind</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">pSnd</span> <span class="n" style="color: #333;">co_kinds</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1827" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1827
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<pre style="margin: 0;">+<span id="LC1827" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">zipWithM_</span> <span class="p">(</span><span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">tyConRolesX</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc</span><span class="p">)</span> <span class="n" style="color: #333;">co_roles</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1828" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1828
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<pre style="margin: 0;">+<span id="LC1828" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConAppCo</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">cos'</span><span class="p">)</span> <span class="p">}</span></span>
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1775
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1829
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<pre style="margin: 0;"> <span id="LC1829" class="line" lang="haskell"></span>
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1776
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1830
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<pre style="margin: 0;"> <span id="LC1830" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppCo</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">co2</span><span class="p">)</span></span>
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1777
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1831
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<pre style="margin: 0;"> <span id="LC1831" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">TyConAppCo</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">co1</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1779" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1833" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1779,111 +1833,66 @@ lintCoercion co@(AppCo co1 co2)</td>
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1779
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1833
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<pre style="margin: 0;"> <span id="LC1833" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="p">{},</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">isReflCo_maybe</span> <span class="n" style="color: #333;">co1</span></span>
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1780
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1834
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<pre style="margin: 0;"> <span id="LC1834" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Refl (TyConApp ...) to the left of AppCo:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1781
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1835
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<pre style="margin: 0;"> <span id="LC1835" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1782
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<pre style="margin: 0;">-<span id="LC1782" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">s1</span><span class="p">,</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="n" style="color: #333;">r1</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1783
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<pre style="margin: 0;">-<span id="LC1783" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k'1</span><span class="p">,</span> <span class="n" style="color: #333;">k'2</span><span class="p">,</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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1784
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<pre style="margin: 0;">-<span id="LC1784" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k3</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;">k1</span> <span class="p">[(</span><span class="n" style="color: #333;">t1</span><span class="p">,</span><span class="n" style="color: #333;">k'1</span><span class="p">)]</span></span>
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1785
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<pre style="margin: 0;">-<span id="LC1785" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k4</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;">k2</span> <span class="p">[(</span><span class="n" style="color: #333;">t2</span><span class="p">,</span><span class="n" style="color: #333;">k'2</span><span class="p">)]</span></span>
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1836
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<pre style="margin: 0;">+<span id="LC1836" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1837
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<pre style="margin: 0;">+<span id="LC1837" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1838" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1838
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<pre style="margin: 0;">+<span id="LC1838" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">lk1</span> <span class="n" style="color: #333;">rk1</span><span class="p">,</span> <span class="n" style="color: #333;">r1</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKindRole</span> <span class="n" style="color: #333;">co1'</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1839" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1839
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<pre style="margin: 0;">+<span id="LC1839" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">lk2</span> <span class="n" style="color: #333;">rk2</span><span class="p">,</span> <span class="n" style="color: #333;">r2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKindRole</span> <span class="n" style="color: #333;">co2'</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1840" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1840
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<pre style="margin: 0;">+<span id="LC1840" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">lk1</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">lk2</span><span class="p">]</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1841" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1841
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<pre style="margin: 0;">+<span id="LC1841" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint_co_app</span> <span class="n" style="color: #333;">co</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">rk1</span><span class="p">)</span> <span class="p">[</span><span class="n" style="color: #333;">rk2</span><span class="p">]</span></span>
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1842
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<pre style="margin: 0;">+<span id="LC1842" class="line" lang="haskell"></span>
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1786
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<td class="diff-line-num new_line" data-linenumber="1843" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1843
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<pre style="margin: 0;"> <span id="LC1843" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">if</span> <span class="n" style="color: #333;">r1</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Phantom</span></span>
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<td class="diff-line-num old_line" data-linenumber="1787" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1787
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<td class="diff-line-num new_line" data-linenumber="1844" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1844
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<pre style="margin: 0;"> <span id="LC1844" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">r2</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Phantom</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">r2</span> <span class="o" style="font-weight: 600;">==</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span><span class="p">)</span></span>
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1788
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1845
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<pre style="margin: 0;"> <span id="LC1845" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Second argument in AppCo cannot be R:"</span> <span class="o" style="font-weight: 600;">$$</span></span>
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1789
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1846
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<pre style="margin: 0;"> <span id="LC1846" class="line" lang="haskell"> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1790
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1847
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<pre style="margin: 0;"> <span id="LC1847" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r2</span></span>
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1791
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<td class="diff-line-num new_line old" data-linenumber="1848" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1791" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span> <span class="n" style="color: #333;">mkAppTy</span> <span class="n" style="color: #333;">s1</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">mkAppTy</span> <span class="n" style="color: #333;">s2</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r1</span><span class="p">)</span> <span class="p">}</span></span>
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1848
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<pre style="margin: 0;">+<span id="LC1848" class="line" lang="haskell"></span>
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1849
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<pre style="margin: 0;">+<span id="LC1849" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppCo</span> <span class="n" style="color: #333;">co1'</span> <span class="n" style="color: #333;">co2'</span><span class="p">)</span> <span class="p">}</span></span>
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1792
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1850
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<pre style="margin: 0;"> <span id="LC1850" class="line" lang="haskell"></span>
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1793
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1851
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<pre style="margin: 0;"> <span id="LC1851" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------</span></span>
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1794
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<pre style="margin: 0;">-<span id="LC1794" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">tv1</span> <span class="n" style="color: #333;">kind_co</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1795
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<pre style="margin: 0;">-<span id="LC1795" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over types</span></span>
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1796
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<pre style="margin: 0;">-<span id="LC1796" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv1</span></span>
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1797
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<pre style="margin: 0;">-<span id="LC1797" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kind_co</span></span>
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1798
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<pre style="margin: 0;">-<span id="LC1798" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tv2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">setTyVarKind</span> <span class="n" style="color: #333;">tv1</span> <span class="n" style="color: #333;">k2</span></span>
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1799
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<pre style="margin: 0;">-<span id="LC1799" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addInScopeTyCoVar</span> <span class="n" style="color: #333;">tv1</span> <span class="o" style="font-weight: 600;">$</span></span>
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1800
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<pre style="margin: 0;">-<span id="LC1800" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span></span>
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1801
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<pre style="margin: 0;">-<span id="LC1801" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1802
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<pre style="margin: 0;">-<span id="LC1802" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getInScope</span></span>
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1803
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<pre style="margin: 0;">-<span id="LC1803" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tyl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkInvForAllTy</span> <span class="n" style="color: #333;">tv1</span> <span class="n" style="color: #333;">t1</span></span>
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1804
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<pre style="margin: 0;">-<span id="LC1804" class="line" lang="haskell"> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkTvSubst</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;">$</span></span>
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1805
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<pre style="margin: 0;">-<span id="LC1805" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We need both the free vars of the `t2` and the</span></span>
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1806
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<pre style="margin: 0;">-<span id="LC1806" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- free vars of the range of the substitution in</span></span>
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1807
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<pre style="margin: 0;">-<span id="LC1807" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- scope. All the free vars of `t2` and `kind_co` should</span></span>
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1808
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<pre style="margin: 0;">-<span id="LC1808" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- already be in `in_scope`, because they've been</span></span>
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1809
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<pre style="margin: 0;">-<span id="LC1809" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- linted and `tv2` has the same unique as `tv1`.</span></span>
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1810
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<pre style="margin: 0;">-<span id="LC1810" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [The substitution invariant] in GHC.Core.TyCo.Subst.</span></span>
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1811
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<pre style="margin: 0;">-<span id="LC1811" class="line" lang="haskell"> <span class="n" style="color: #333;">unitVarEnv</span> <span class="n" style="color: #333;">tv1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyVarTy</span> <span class="n" style="color: #333;">tv2</span> <span class="p">`</span><span class="n" style="color: #333;">mkCastTy</span><span class="p">`</span> <span class="n" style="color: #333;">mkSymCo</span> <span class="n" style="color: #333;">kind_co</span><span class="p">)</span></span>
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1812
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<pre style="margin: 0;">-<span id="LC1812" class="line" lang="haskell"> <span class="n" style="color: #333;">tyr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkInvForAllTy</span> <span class="n" style="color: #333;">tv2</span> <span class="o" style="font-weight: 600;">$</span></span>
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1813
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<pre style="margin: 0;">-<span id="LC1813" class="line" lang="haskell"> <span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">t2</span></span>
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1814
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<pre style="margin: 0;">-<span id="LC1814" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span> <span class="n" style="color: #333;">tyl</span><span class="p">,</span> <span class="n" style="color: #333;">tyr</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span> <span class="p">}</span></span>
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1815
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<pre style="margin: 0;">-<span id="LC1815" class="line" lang="haskell"></span>
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1816
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<pre style="margin: 0;">-<span id="LC1816" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">cv1</span> <span class="n" style="color: #333;">kind_co</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1817
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<pre style="margin: 0;">-<span id="LC1817" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over coercions</span></span>
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1818
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<pre style="margin: 0;">-<span id="LC1818" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT</span><span class="p">(</span> <span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cv1</span> <span class="p">)</span></span>
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1819
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<pre style="margin: 0;">-<span id="LC1819" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">almostDevoidCoVarOfCo</span> <span class="n" style="color: #333;">cv1</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1852
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<pre style="margin: 0;">+<span id="LC1852" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">tcv1</span> <span class="n" style="color: #333;">kind_co</span> <span class="n" style="color: #333;">body_co</span><span class="p">)</span></span>
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1853
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<pre style="margin: 0;">+<span id="LC1853" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isTyCoVar</span> <span class="n" style="color: #333;">tcv1</span><span class="p">)</span></span>
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1854
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<pre style="margin: 0;">+<span id="LC1854" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Non tyco binder in ForAllCo:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1855
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<pre style="margin: 0;">+<span id="LC1855" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1856" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1856
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<pre style="margin: 0;">+<span id="LC1856" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">kind_co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kind_co</span></span>
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1857
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<pre style="margin: 0;">+<span id="LC1857" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintTyCoBndr</span> <span class="n" style="color: #333;">tcv1</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">tcv1'</span> <span class="o" style="font-weight: 600;">-></span></span>
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<td class="diff-line-num new new_line" data-linenumber="1858" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1858
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<pre style="margin: 0;">+<span id="LC1858" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">body_co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">body_co</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1859" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1859
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<pre style="margin: 0;">+<span id="LC1859" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">tcv1'</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">coercionLKind</span> <span class="n" style="color: #333;">kind_co'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1860
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<pre style="margin: 0;">+<span id="LC1860" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Kind mis-match in ForallCo"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span></span>
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1861
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<pre style="margin: 0;">+<span id="LC1861" class="line" lang="haskell"></span>
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1862
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<pre style="margin: 0;">+<span id="LC1862" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintForAllBody</span> <span class="n" style="color: #333;">tcv1'</span> <span class="p">(</span><span class="n" style="color: #333;">coercionLKind</span> <span class="n" style="color: #333;">body_co'</span><span class="p">)</span></span>
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1863
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<pre style="margin: 0;">+<span id="LC1863" class="line" lang="haskell"></span>
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1864
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<pre style="margin: 0;">+<span id="LC1864" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">tcv1</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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1865
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<pre style="margin: 0;">+<span id="LC1865" class="line" lang="haskell"> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">almostDevoidCoVarOfCo</span> <span class="n" style="color: #333;">tcv1</span> <span class="n" style="color: #333;">body_co</span><span class="p">)</span></span>
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1820
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1866
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<pre style="margin: 0;"> <span id="LC1866" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Covar can only appear in Refl and GRefl: "</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1821
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<pre style="margin: 0;">-<span id="LC1821" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kind_co</span></span>
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1822
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<pre style="margin: 0;">-<span id="LC1822" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">cv2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">setVarType</span> <span class="n" style="color: #333;">cv1</span> <span class="n" style="color: #333;">k2</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1823" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1823
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<pre style="margin: 0;">-<span id="LC1823" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">addInScopeTyCoVar</span> <span class="n" style="color: #333;">cv1</span> <span class="o" style="font-weight: 600;">$</span></span>
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1824
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<pre style="margin: 0;">-<span id="LC1824" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span></span>
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1825
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<pre style="margin: 0;">-<span id="LC1825" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1826
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<pre style="margin: 0;">-<span id="LC1826" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k3</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of a ForAllCo over covar:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1827
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<pre style="margin: 0;">-<span id="LC1827" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">checkValueKind</span> <span class="n" style="color: #333;">k4</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"the body of a ForAllCo over covar:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1828
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<pre style="margin: 0;">-<span id="LC1828" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Weird typing rule for ForAllTy] in GHC.Core.TyCo.Rep</span></span>
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1829
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<pre style="margin: 0;">-<span id="LC1829" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getInScope</span></span>
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1830
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<pre style="margin: 0;">-<span id="LC1830" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tyl</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkTyCoInvForAllTy</span> <span class="n" style="color: #333;">cv1</span> <span class="n" style="color: #333;">t1</span></span>
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1831
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<pre style="margin: 0;">-<span id="LC1831" class="line" lang="haskell"> <span class="n" style="color: #333;">r2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coVarRole</span> <span class="n" style="color: #333;">cv1</span></span>
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1832
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<pre style="margin: 0;">-<span id="LC1832" class="line" lang="haskell"> <span class="n" style="color: #333;">kind_co'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">downgradeRole</span> <span class="n" style="color: #333;">r2</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">kind_co</span></span>
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1833
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<pre style="margin: 0;">-<span id="LC1833" class="line" lang="haskell"> <span class="n" style="color: #333;">eta1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkNthCo</span> <span class="n" style="color: #333;">r2</span> <span class="mi" style="color: #099;">2</span> <span class="n" style="color: #333;">kind_co'</span></span>
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1834
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<pre style="margin: 0;">-<span id="LC1834" class="line" lang="haskell"> <span class="n" style="color: #333;">eta2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkNthCo</span> <span class="n" style="color: #333;">r2</span> <span class="mi" style="color: #099;">3</span> <span class="n" style="color: #333;">kind_co'</span></span>
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1835
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<pre style="margin: 0;">-<span id="LC1835" class="line" lang="haskell"> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkCvSubst</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;">$</span></span>
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1836
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<pre style="margin: 0;">-<span id="LC1836" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We need both the free vars of the `t2` and the</span></span>
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1837
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<pre style="margin: 0;">-<span id="LC1837" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- free vars of the range of the substitution in</span></span>
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1838
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<pre style="margin: 0;">-<span id="LC1838" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- scope. All the free vars of `t2` and `kind_co` should</span></span>
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1839
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<pre style="margin: 0;">-<span id="LC1839" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- already be in `in_scope`, because they've been</span></span>
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1840
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<pre style="margin: 0;">-<span id="LC1840" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- linted and `cv2` has the same unique as `cv1`.</span></span>
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1841
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<pre style="margin: 0;">-<span id="LC1841" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [The substitution invariant] in GHC.Core.TyCo.Subst.</span></span>
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1842
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<pre style="margin: 0;">-<span id="LC1842" class="line" lang="haskell"> <span class="n" style="color: #333;">unitVarEnv</span> <span class="n" style="color: #333;">cv1</span> <span class="p">(</span><span class="n" style="color: #333;">eta1</span> <span class="p">`</span><span class="n" style="color: #333;">mkTransCo</span><span class="p">`</span> <span class="p">(</span><span class="n" style="color: #333;">mkCoVarCo</span> <span class="n" style="color: #333;">cv2</span><span class="p">)</span></span>
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1843
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<pre style="margin: 0;">-<span id="LC1843" class="line" lang="haskell"> <span class="p">`</span><span class="n" style="color: #333;">mkTransCo</span><span class="p">`</span> <span class="p">(</span><span class="n" style="color: #333;">mkSymCo</span> <span class="n" style="color: #333;">eta2</span><span class="p">))</span></span>
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1844
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<pre style="margin: 0;">-<span id="LC1844" class="line" lang="haskell"> <span class="n" style="color: #333;">tyr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkTyCoInvForAllTy</span> <span class="n" style="color: #333;">cv2</span> <span class="o" style="font-weight: 600;">$</span></span>
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1845
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<pre style="margin: 0;">-<span id="LC1845" class="line" lang="haskell"> <span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">t2</span></span>
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1846
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<pre style="margin: 0;">-<span id="LC1846" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">liftedTypeKind</span><span class="p">,</span> <span class="n" style="color: #333;">liftedTypeKind</span><span class="p">,</span> <span class="n" style="color: #333;">tyl</span><span class="p">,</span> <span class="n" style="color: #333;">tyr</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span> <span class="p">}</span></span>
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1847
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<pre style="margin: 0;">-<span id="LC1847" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Weird typing rule for ForAllTy] in GHC.Core.TyCo.Rep</span></span>
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1867
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<pre style="margin: 0;">+<span id="LC1867" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See "last wrinkle" in GHC.Core.Coercion</span></span>
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1868
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<pre style="margin: 0;">+<span id="LC1868" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Note [Unused coercion variable in ForAllCo]</span></span>
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1848
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1869
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<pre style="margin: 0;"> <span id="LC1869" class="line" lang="haskell"></span>
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1849
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<pre style="margin: 0;">-<span id="LC1849" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunCo</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">co2</span><span class="p">)</span></span>
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1850
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<pre style="margin: 0;">-<span id="LC1850" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span><span class="n" style="color: #333;">k'1</span><span class="p">,</span><span class="n" style="color: #333;">s1</span><span class="p">,</span><span class="n" style="color: #333;">t1</span><span class="p">,</span><span class="n" style="color: #333;">r1</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1851
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<pre style="margin: 0;">-<span id="LC1851" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k2</span><span class="p">,</span><span class="n" style="color: #333;">k'2</span><span class="p">,</span><span class="n" style="color: #333;">s2</span><span class="p">,</span><span class="n" style="color: #333;">t2</span><span class="p">,</span><span class="n" style="color: #333;">r2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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1852
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<pre style="margin: 0;">-<span id="LC1852" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span></span>
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1853
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<pre style="margin: 0;">-<span id="LC1853" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span> <span class="n" style="color: #333;">k'1</span> <span class="n" style="color: #333;">k'2</span></span>
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1854
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<pre style="margin: 0;">-<span id="LC1854" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">r1</span></span>
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1855
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<pre style="margin: 0;">-<span id="LC1855" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co2</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">r2</span></span>
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1856
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<pre style="margin: 0;">-<span id="LC1856" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k</span><span class="p">,</span> <span class="n" style="color: #333;">k'</span><span class="p">,</span> <span class="n" style="color: #333;">mkVisFunTy</span> <span class="n" style="color: #333;">s1</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="n" style="color: #333;">mkVisFunTy</span> <span class="n" style="color: #333;">t1</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span></span>
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1870
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<pre style="margin: 0;">+<span id="LC1870" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">tcv1'</span> <span class="n" style="color: #333;">kind_co'</span> <span class="n" style="color: #333;">body_co'</span><span class="p">)</span> <span class="p">}</span> <span class="p">}</span></span>
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1857
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1871
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<pre style="margin: 0;"> <span id="LC1871" class="line" lang="haskell"></span>
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1858
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<pre style="margin: 0;">-<span id="LC1858" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoVarCo</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1859
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<td class="diff-line-num new_line old" data-linenumber="1872" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1859" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1860
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<pre style="margin: 0;">-<span id="LC1860" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad CoVarCo:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cv</span><span class="p">)</span></span>
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1861
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<pre style="margin: 0;">-<span id="LC1861" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"With offending type:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv</span><span class="p">)))</span></span>
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1862
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<pre style="margin: 0;">-<span id="LC1862" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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1863
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<pre style="margin: 0;">-<span id="LC1863" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">cv'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintTyCoVarInScope</span> <span class="n" style="color: #333;">cv</span></span>
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1864
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<pre style="margin: 0;">-<span id="LC1864" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintUnliftedCoVar</span> <span class="n" style="color: #333;">cv'</span></span>
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1865
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<pre style="margin: 0;">-<span id="LC1865" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">coVarKindsTypesRole</span> <span class="n" style="color: #333;">cv'</span> <span class="p">}</span></span>
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1872
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<pre style="margin: 0;">+<span id="LC1872" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunCo</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">co2</span><span class="p">)</span></span>
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1873
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<pre style="margin: 0;">+<span id="LC1873" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1874
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<pre style="margin: 0;">+<span id="LC1874" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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1875
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<pre style="margin: 0;">+<span id="LC1875" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">lt1</span> <span class="n" style="color: #333;">rt1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">co1</span></span>
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1876
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<pre style="margin: 0;">+<span id="LC1876" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">lt2</span> <span class="n" style="color: #333;">rt2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">co2</span></span>
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1877
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<pre style="margin: 0;">+<span id="LC1877" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span> <span class="n" style="color: #333;">lt1</span> <span class="n" style="color: #333;">lt2</span></span>
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1878
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<pre style="margin: 0;">+<span id="LC1878" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintArrow</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span> <span class="n" style="color: #333;">rt1</span> <span class="n" style="color: #333;">rt2</span></span>
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1879
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<pre style="margin: 0;">+<span id="LC1879" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">r</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">co1</span><span class="p">)</span></span>
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1880
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<pre style="margin: 0;">+<span id="LC1880" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co2</span> <span class="n" style="color: #333;">r</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">co2</span><span class="p">)</span></span>
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1881
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<pre style="margin: 0;">+<span id="LC1881" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunCo</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">co1'</span> <span class="n" style="color: #333;">co2'</span><span class="p">)</span> <span class="p">}</span></span>
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1866
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1882
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<pre style="margin: 0;"> <span id="LC1882" class="line" lang="haskell"></span>
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1867
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1883
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<pre style="margin: 0;"> <span id="LC1883" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Bad unsafe coercion]</span></span>
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1868
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1884
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<pre style="margin: 0;"> <span id="LC1884" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnivCo</span> <span class="n" style="color: #333;">prov</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span></span>
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1869
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<pre style="margin: 0;">-<span id="LC1869" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty1</span></span>
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<pre style="margin: 0;">-<span id="LC1870" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty2</span></span>
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<pre style="margin: 0;">-<span id="LC1871" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">prov</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">-<span id="LC1872" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">PhantomProv</span> <span class="n" style="color: #333;">kco</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="kt" style="color: #458; font-weight: 600;">Phantom</span> <span class="n" style="color: #333;">r</span></span>
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<pre style="margin: 0;">-<span id="LC1873" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC1874" class="line" lang="haskell"></span>
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1875
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<pre style="margin: 0;">-<span id="LC1875" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">ProofIrrelProv</span> <span class="n" style="color: #333;">kco</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">ty1</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC1876" class="line" lang="haskell"> <span class="n" style="color: #333;">mkBadProofIrrelMsg</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">-<span id="LC1877" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC1878" class="line" lang="haskell"> <span class="n" style="color: #333;">mkBadProofIrrelMsg</span> <span class="n" style="color: #333;">ty2</span> <span class="n" style="color: #333;">co</span></span>
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<pre style="margin: 0;">-<span id="LC1879" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC1880" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1881" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">PluginProv</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span> <span class="c1" style="color: #998; font-style: italic;">-- no extra checks</span></span>
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<pre style="margin: 0;">+<span id="LC1885" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">ty1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty1</span></span>
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<pre style="margin: 0;">+<span id="LC1886" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ty2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintType</span> <span class="n" style="color: #333;">ty2</span></span>
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<pre style="margin: 0;">+<span id="LC1887" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty1'</span></span>
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<pre style="margin: 0;">+<span id="LC1888" class="line" lang="haskell"> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ty2'</span></span>
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<pre style="margin: 0;">+<span id="LC1889" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">prov'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lint_prov</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">prov</span></span>
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1890
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<pre style="margin: 0;"> <span id="LC1890" class="line" lang="haskell"></span>
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1883
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<pre style="margin: 0;"> <span id="LC1891" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">/=</span> <span class="kt" style="color: #458; font-weight: 600;">Phantom</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k1</span></span>
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1884
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1892
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<pre style="margin: 0;"> <span id="LC1892" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">classifiesTypeWithValues</span> <span class="n" style="color: #333;">k2</span><span class="p">)</span></span>
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1885
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1893
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<pre style="margin: 0;"> <span id="LC1893" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">checkTypes</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC1886" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k1</span><span class="p">,</span> <span class="n" style="color: #333;">k2</span><span class="p">,</span> <span class="n" style="color: #333;">ty1</span><span class="p">,</span> <span class="n" style="color: #333;">ty2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span></span>
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1894
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<pre style="margin: 0;">+<span id="LC1894" class="line" lang="haskell"></span>
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1895
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<pre style="margin: 0;">+<span id="LC1895" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnivCo</span> <span class="n" style="color: #333;">prov'</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">ty1'</span> <span class="n" style="color: #333;">ty2'</span><span class="p">)</span> <span class="p">}</span></span>
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1887
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1896
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<pre style="margin: 0;"> <span id="LC1896" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1888
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1897
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<pre style="margin: 0;"> <span id="LC1897" class="line" lang="haskell"> <span class="n" style="color: #333;">report</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="o" style="font-weight: 600;">$</span> <span class="s" style="color: #d14;">"Unsafe coercion: "</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">s</span><span class="p">)</span></span>
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1889
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1898
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<pre style="margin: 0;"> <span id="LC1898" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"From:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty1</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1926" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1935" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1926,39 +1935,53 @@ lintCoercion co@(UnivCo prov r ty1 ty2)</td>
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1926
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1935
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<pre style="margin: 0;"> <span id="LC1935" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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1927
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1936
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<pre style="margin: 0;"> <span id="LC1936" class="line" lang="haskell"> <span class="p">}</span></span>
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1928
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1937
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<pre style="margin: 0;"> <span id="LC1937" class="line" lang="haskell"></span>
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1929
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<pre style="margin: 0;">-<span id="LC1929" class="line" lang="haskell"> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1'</span><span class="p">,</span> <span class="n" style="color: #333;">k2'</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kco</span></span>
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1930
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<pre style="margin: 0;">-<span id="LC1930" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k1'</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadUnivCoMsg</span> <span class="kt" style="color: #458; font-weight: 600;">CLeft</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1931
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<pre style="margin: 0;">-<span id="LC1931" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">k2'</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadUnivCoMsg</span> <span class="kt" style="color: #458; font-weight: 600;">CRight</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="p">}</span></span>
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1938
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<pre style="margin: 0;">+<span id="LC1938" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_prov</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhantomProv</span> <span class="n" style="color: #333;">kco</span><span class="p">)</span></span>
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1939
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<pre style="margin: 0;">+<span id="LC1939" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">kco'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kco</span></span>
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1940
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<pre style="margin: 0;">+<span id="LC1940" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="kt" style="color: #458; font-weight: 600;">Phantom</span> <span class="n" style="color: #333;">r</span></span>
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1941
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<pre style="margin: 0;">+<span id="LC1941" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco'</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span></span>
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1942
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<pre style="margin: 0;">+<span id="LC1942" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhantomProv</span> <span class="n" style="color: #333;">kco'</span><span class="p">)</span> <span class="p">}</span></span>
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1943
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<pre style="margin: 0;">+<span id="LC1943" class="line" lang="haskell"></span>
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1944
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<pre style="margin: 0;">+<span id="LC1944" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_prov</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ProofIrrelProv</span> <span class="n" style="color: #333;">kco</span><span class="p">)</span></span>
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1945
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<pre style="margin: 0;">+<span id="LC1945" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">ty1</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadProofIrrelMsg</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1946
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<pre style="margin: 0;">+<span id="LC1946" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintL</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadProofIrrelMsg</span> <span class="n" style="color: #333;">ty2</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1947" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1947
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<pre style="margin: 0;">+<span id="LC1947" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">kco'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintStarCoercion</span> <span class="n" style="color: #333;">kco</span></span>
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1948
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<pre style="margin: 0;">+<span id="LC1948" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span></span>
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1949
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<pre style="margin: 0;">+<span id="LC1949" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ProofIrrelProv</span> <span class="n" style="color: #333;">kco'</span><span class="p">)</span> <span class="p">}</span></span>
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1950
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<pre style="margin: 0;">+<span id="LC1950" class="line" lang="haskell"></span>
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1951
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<pre style="margin: 0;">+<span id="LC1951" class="line" lang="haskell"> <span class="n" style="color: #333;">lint_prov</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">prov</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PluginProv</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">prov</span></span>
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1952
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<pre style="margin: 0;">+<span id="LC1952" class="line" lang="haskell"></span>
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1953
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<pre style="margin: 0;">+<span id="LC1953" class="line" lang="haskell"> <span class="n" style="color: #333;">check_kinds</span> <span class="n" style="color: #333;">kco</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k2</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1954" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1954
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<pre style="margin: 0;">+<span id="LC1954" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">k1'</span> <span class="n" style="color: #333;">k2'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">kco</span></span>
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1955
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<pre style="margin: 0;">+<span id="LC1955" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k1</span> <span class="n" style="color: #333;">k1'</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadUnivCoMsg</span> <span class="kt" style="color: #458; font-weight: 600;">CLeft</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1956
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<pre style="margin: 0;">+<span id="LC1956" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">k2</span> <span class="n" style="color: #333;">k2'</span> <span class="p">(</span><span class="n" style="color: #333;">mkBadUnivCoMsg</span> <span class="kt" style="color: #458; font-weight: 600;">CRight</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="p">}</span></span>
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1932
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1957
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<pre style="margin: 0;"> <span id="LC1957" class="line" lang="haskell"></span>
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1933
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1958
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<pre style="margin: 0;"> <span id="LC1958" class="line" lang="haskell"></span>
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1934
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1959
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<pre style="margin: 0;"> <span id="LC1959" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SymCo</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1935
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<pre style="margin: 0;">-<span id="LC1935" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1936
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<pre style="margin: 0;">-<span id="LC1936" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r</span></span><span class="p">)</span> <span class="p">}</span></span>
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1960
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<pre style="margin: 0;">+<span id="LC1960" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">co'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1961
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<pre style="margin: 0;">+<span id="LC1961" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">SymCo</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co'</span></span><span class="p">)</span> <span class="p">}</span></span>
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1937
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1962
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<pre style="margin: 0;"> <span id="LC1962" class="line" lang="haskell"></span>
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1938
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1963
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<pre style="margin: 0;"> <span id="LC1963" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TransCo</span> <span class="n" style="color: #333;">co1</span> <span class="n" style="color: #333;">co2</span><span class="p">)</span></span>
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1939
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<pre style="margin: 0;">-<span id="LC1939" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k1a</span><span class="p">,</span> <span class="n" style="color: #333;">_k1b</span><span class="p">,</span> <span class="n" style="color: #333;">ty1a</span><span class="p">,</span> <span class="n" style="color: #333;">ty1b</span><span class="p">,</span> <span class="n" style="color: #333;">r1</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1940
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<pre style="margin: 0;">-<span id="LC1940" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">_k2a</span><span class="p">,</span> <span class="n" style="color: #333;">k2b</span><span class="p">,</span> <span class="n" style="color: #333;">ty2a</span><span class="p">,</span> <span class="n" style="color: #333;">ty2b</span><span class="p">,</span> <span class="n" style="color: #333;">r2</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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1964
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<pre style="margin: 0;">+<span id="LC1964" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co1</span></span>
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1965
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<pre style="margin: 0;">+<span id="LC1965" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">co2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co2</span></span>
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1966
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<pre style="margin: 0;">+<span id="LC1966" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">ty1b</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionRKind</span> <span class="n" style="color: #333;">co1'</span></span>
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1967
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<pre style="margin: 0;">+<span id="LC1967" class="line" lang="haskell"> <span class="n" style="color: #333;">ty2a</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionLKind</span> <span class="n" style="color: #333;">co2'</span></span>
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1941
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1968
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<pre style="margin: 0;"> <span id="LC1968" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">ensureEqTys</span> <span class="n" style="color: #333;">ty1b</span> <span class="n" style="color: #333;">ty2a</span></span>
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1942
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1969
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<pre style="margin: 0;"> <span id="LC1969" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Trans coercion mis-match:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1943
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<pre style="margin: 0;">-<span id="LC1943" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left">ty1a</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty1b</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty2a</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">ty2b</span></span><span class="p">]))</span></span>
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1944
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<pre style="margin: 0;">-<span id="LC1944" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;"><span class="idiff left">r1</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r2</span></span></span>
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1945
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<pre style="margin: 0;">-<span id="LC1945" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">k1a</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k2b</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty1a</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty2b</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r1</span></span><span class="p">)</span> <span class="p">}</span></span>
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1970
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<pre style="margin: 0;">+<span id="LC1970" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">ppr</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionKind</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co1'</span></span><span class="p"><span class="idiff">),</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionKind</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co2'</span></span><span class="p"><span class="idiff right">)</span>]))</span></span>
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1971
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<pre style="margin: 0;">+<span id="LC1971" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionRole</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co1</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionRole</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co2</span></span><span class="p"><span class="idiff right">)</span></span></span>
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1972
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<pre style="margin: 0;">+<span id="LC1972" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TransCo</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co1'</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co2'</span></span><span class="p">)</span> <span class="p">}</span></span>
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1946
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1973
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<pre style="margin: 0;"> <span id="LC1973" class="line" lang="haskell"></span>
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1947
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1974
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<pre style="margin: 0;"> <span id="LC1974" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">the_co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NthCo</span> <span class="n" style="color: #333;">r0</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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1948
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<pre style="margin: 0;">-<span id="LC1948" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="n" style="color: #333;">t</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1975
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<pre style="margin: 0;">+<span id="LC1975" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1949" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="1976" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1976
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<pre style="margin: 0;">+<span id="LC1976" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">s</span> <span class="n" style="color: #333;">t</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKindRole</span> <span class="n" style="color: #333;">co'</span></span>
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1949
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<td class="diff-line-num new_line" data-linenumber="1977" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1977
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<pre style="margin: 0;"> <span id="LC1977" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitForAllTy_maybe</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="n" style="color: #333;">splitForAllTy_maybe</span> <span class="n" style="color: #333;">t</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1950" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1950
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<td class="diff-line-num new_line old" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1950" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">tcv_s</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">_ty_s</span></span><span class="p"><span class="idiff">),</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Just</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">tcv_t</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">_ty_t</span></span><span class="p"><span class="idiff right">)</span>)</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1951" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1978
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<pre style="margin: 0;">+<span id="LC1978" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Just</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff right">_</span></span><span class="p">)</span></span>
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1951
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1979
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<pre style="margin: 0;"> <span id="LC1979" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- works for both tyvar and covar</span></span>
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1952
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1980
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<pre style="margin: 0;"> <span id="LC1980" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">==</span> <span class="mi" style="color: #099;">0</span></span>
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<td class="diff-line-num old_line" data-linenumber="1953" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1953
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1981
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<pre style="margin: 0;"> <span id="LC1981" class="line" lang="haskell"> <span class="p">,</span> <span class="p">(</span><span class="n" style="color: #333;">isForAllTy_ty</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isForAllTy_ty</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1954" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1954
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1982
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<pre style="margin: 0;"> <span id="LC1982" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">||</span> <span class="p">(</span><span class="n" style="color: #333;">isForAllTy_co</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isForAllTy_co</span> <span class="n" style="color: #333;">t</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1955" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1955
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1983
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<pre style="margin: 0;"> <span id="LC1983" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">the_co</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r0</span></span>
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1956
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<pre style="margin: 0;">-<span id="LC1956" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">ks</span><span class="p">,</span> <span class="n" style="color: #333;">kt</span><span class="p">,</span> <span class="n" style="color: #333;">ts</span><span class="p">,</span> <span class="n" style="color: #333;">tt</span><span class="p">,</span> <span class="n" style="color: #333;">r0</span><span class="p">)</span> <span class="p">}</span></span>
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1957
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<pre style="margin: 0;">-<span id="LC1957" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1958
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<pre style="margin: 0;">-<span id="LC1958" class="line" lang="haskell"> <span class="n" style="color: #333;">ts</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">tcv_s</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1959" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1959
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<pre style="margin: 0;">-<span id="LC1959" class="line" lang="haskell"> <span class="n" style="color: #333;">tt</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">tcv_t</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1960" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1960
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<td class="diff-line-num new_line old" data-linenumber="1984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1960" class="line" lang="haskell"> <span class="n" style="color: #333;">ks</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ts</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1961" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1961
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<pre style="margin: 0;">-<span id="LC1961" class="line" lang="haskell"> <span class="n" style="color: #333;">kt</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">tt</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1962" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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1984
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<pre style="margin: 0;">+<span id="LC1984" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NthCo</span> <span class="n" style="color: #333;">r0</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span> <span class="p">}</span></span>
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<td class="diff-line-num old_line" data-linenumber="1962" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1962
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<td class="diff-line-num new_line" data-linenumber="1985" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1985
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<pre style="margin: 0;"> <span id="LC1985" class="line" lang="haskell"></span>
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<td class="diff-line-num old_line" data-linenumber="1963" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1963
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<td class="diff-line-num new_line" data-linenumber="1986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1986
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<pre style="margin: 0;"> <span id="LC1986" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitTyConApp_maybe</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="n" style="color: #333;">splitTyConApp_maybe</span> <span class="n" style="color: #333;">t</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num old_line" data-linenumber="1964" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1964
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<td class="diff-line-num new_line" data-linenumber="1987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1987
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<pre style="margin: 0;"> <span id="LC1987" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tc_s</span><span class="p">,</span> <span class="n" style="color: #333;">tys_s</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tc_t</span><span class="p">,</span> <span class="n" style="color: #333;">tys_t</span><span class="p">))</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1968" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1991" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1968,62 +1991,51 @@ lintCoercion the_co@(NthCo r0 n co)</td>
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1968
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1991
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<pre style="margin: 0;"> <span id="LC1991" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tys_s</span> <span class="p">`</span><span class="n" style="color: #333;">equalLength</span><span class="p">`</span> <span class="n" style="color: #333;">tys_t</span></span>
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1969
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<td class="diff-line-num new_line" data-linenumber="1992" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1992
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<pre style="margin: 0;"> <span id="LC1992" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tys_s</span> <span class="p">`</span><span class="n" style="color: #333;">lengthExceeds</span><span class="p">`</span> <span class="n" style="color: #333;">n</span></span>
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<td class="diff-line-num old_line" data-linenumber="1970" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1970
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<td class="diff-line-num new_line" data-linenumber="1993" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1993
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<pre style="margin: 0;"> <span id="LC1993" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">the_co</span> <span class="n" style="color: #333;">tr</span> <span class="n" style="color: #333;">r0</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1971" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1971
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<pre style="margin: 0;">-<span id="LC1971" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">ks</span><span class="p">,</span> <span class="n" style="color: #333;">kt</span><span class="p">,</span> <span class="n" style="color: #333;">ts</span><span class="p">,</span> <span class="n" style="color: #333;">tt</span><span class="p">,</span> <span class="n" style="color: #333;">r0</span><span class="p">)</span> <span class="p">}</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1972" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1972
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<pre style="margin: 0;">-<span id="LC1972" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1973" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1973
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<pre style="margin: 0;">-<span id="LC1973" class="line" lang="haskell"> <span class="n" style="color: #333;">ts</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">getNth</span> <span class="n" style="color: #333;">tys_s</span> <span class="n" style="color: #333;">n</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1974" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1974
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<pre style="margin: 0;">-<span id="LC1974" class="line" lang="haskell"> <span class="n" style="color: #333;">tt</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">getNth</span> <span class="n" style="color: #333;">tys_t</span> <span class="n" style="color: #333;">n</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1975" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1975
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<pre style="margin: 0;">-<span id="LC1975" class="line" lang="haskell"> <span class="n" style="color: #333;">tr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nthRole</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc_s</span> <span class="n" style="color: #333;">n</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1976" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1976
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<td class="diff-line-num new_line old" data-linenumber="1994" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1976" class="line" lang="haskell"> <span class="n" style="color: #333;">ks</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">ts</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1977" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1977
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<pre style="margin: 0;">-<span id="LC1977" class="line" lang="haskell"> <span class="n" style="color: #333;">kt</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">tt</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="1994" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1994
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<pre style="margin: 0;">+<span id="LC1994" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NthCo</span> <span class="n" style="color: #333;">r0</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span> <span class="p">}</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="1995" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1995
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<pre style="margin: 0;">+<span id="LC1995" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="1996" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
1996
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<pre style="margin: 0;">+<span id="LC1996" class="line" lang="haskell"> <span class="n" style="color: #333;">tr</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nthRole</span> <span class="n" style="color: #333;">r</span> <span class="n" style="color: #333;">tc_s</span> <span class="n" style="color: #333;">n</span></span>
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<td class="diff-line-num old_line" data-linenumber="1978" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1978
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<td class="diff-line-num new_line" data-linenumber="1997" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1997
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<pre style="margin: 0;"> <span id="LC1997" class="line" lang="haskell"></span>
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<td class="diff-line-num old_line" data-linenumber="1979" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1979
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<td class="diff-line-num new_line" data-linenumber="1998" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1998
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<pre style="margin: 0;"> <span id="LC1998" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad getNth:"</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1980" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1980
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<td class="diff-line-num new_line" data-linenumber="1999" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1999
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<pre style="margin: 0;"> <span id="LC1999" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">the_co</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">))</span> <span class="p">}}}</span></span>
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<td class="diff-line-num old_line" data-linenumber="1981" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1981
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<td class="diff-line-num new_line" data-linenumber="2000" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2000
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<pre style="margin: 0;"> <span id="LC2000" class="line" lang="haskell"></span>
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<td class="diff-line-num old_line" data-linenumber="1982" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1982
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<td class="diff-line-num new_line" data-linenumber="2001" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2001
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<pre style="margin: 0;"> <span id="LC2001" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">the_co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LRCo</span> <span class="n" style="color: #333;">lr</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1983" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1983
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<pre style="margin: 0;">-<span id="LC1983" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span><span class="kr" style="font-weight: 600;">_</span><span class="p">,</span><span class="n" style="color: #333;">s</span><span class="p">,</span><span class="n" style="color: #333;">t</span><span class="p">,</span><span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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2002
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<pre style="margin: 0;">+<span id="LC2002" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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2003
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<pre style="margin: 0;">+<span id="LC2003" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">s</span> <span class="n" style="color: #333;">t</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">co'</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="2004" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
2004
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<pre style="margin: 0;">+<span id="LC2004" class="line" lang="haskell"> <span class="n" style="color: #333;">r</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">co'</span></span>
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<td class="diff-line-num old_line" data-linenumber="1984" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1984
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2005
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<pre style="margin: 0;"> <span id="LC2005" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r</span></span>
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<td class="diff-line-num old_line" data-linenumber="1985" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1985
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2006
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<pre style="margin: 0;"> <span id="LC2006" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitAppTy_maybe</span> <span class="n" style="color: #333;">s</span><span class="p">,</span> <span class="n" style="color: #333;">splitAppTy_maybe</span> <span class="n" style="color: #333;">t</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1986" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1986
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<pre style="margin: 0;">-<span id="LC1986" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">s_pr</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">t_pr</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1987" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1987
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<td class="diff-line-num new_line old" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1987" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">ks_pick</span><span class="p">,</span> <span class="n" style="color: #333;">kt_pick</span><span class="p">,</span> <span class="n" style="color: #333;">s_pick</span><span class="p">,</span> <span class="n" style="color: #333;">t_pick</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1988" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1988
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<pre style="margin: 0;">-<span id="LC1988" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1989" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1989
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<td class="diff-line-num new_line old" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1989" class="line" lang="haskell"> <span class="n" style="color: #333;">s_pick</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pickLR</span> <span class="n" style="color: #333;">lr</span> <span class="n" style="color: #333;">s_pr</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1990" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1990
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<pre style="margin: 0;">-<span id="LC1990" class="line" lang="haskell"> <span class="n" style="color: #333;">t_pick</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pickLR</span> <span class="n" style="color: #333;">lr</span> <span class="n" style="color: #333;">t_pr</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1991" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1991
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<pre style="margin: 0;">-<span id="LC1991" class="line" lang="haskell"> <span class="n" style="color: #333;">ks_pick</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s_pick</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1992" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1992
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<pre style="margin: 0;">-<span id="LC1992" class="line" lang="haskell"> <span class="n" style="color: #333;">kt_pick</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">t_pick</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1993" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1993
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<td class="diff-line-num new_line old" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1993" class="line" lang="haskell"></span>
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<td class="diff-line-num new old_line" data-linenumber="1994" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
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<td class="diff-line-num new new_line" data-linenumber="2007" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
2007
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<pre style="margin: 0;">+<span id="LC2007" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LRCo</span> <span class="n" style="color: #333;">lr</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1994" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1994
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<td class="diff-line-num new_line" data-linenumber="2008" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2008
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<pre style="margin: 0;"> <span id="LC2008" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad LRCo:"</span><span class="p">)</span></span>
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<td class="diff-line-num old_line" data-linenumber="1995" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1995
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<td class="diff-line-num new_line" data-linenumber="2009" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2009
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<pre style="margin: 0;"> <span id="LC2009" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">the_co</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">t</span><span class="p">))</span> <span class="p">}</span></span>
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<td class="diff-line-num old_line" data-linenumber="1996" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1996
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<td class="diff-line-num new_line" data-linenumber="2010" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2010
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<pre style="margin: 0;"> <span id="LC2010" class="line" lang="haskell"></span>
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<td class="diff-line-num old_line" data-linenumber="1997" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
1997
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<td class="diff-line-num new_line" data-linenumber="2011" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2011
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<pre style="margin: 0;"> <span id="LC2011" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InstCo</span> <span class="n" style="color: #333;">co</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="1998" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
1998
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<td class="diff-line-num new_line old" data-linenumber="2012" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC1998" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span> <span class="n" style="color: #333;">t1'</span><span class="p">,</span><span class="n" style="color: #333;">t2'</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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1999
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<pre style="margin: 0;">-<span id="LC1999" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">k1'</span><span class="p">,</span><span class="n" style="color: #333;">k2'</span><span class="p">,</span><span class="n" style="color: #333;">s1</span><span class="p">,</span><span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="n" style="color: #333;">r'</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">arg</span></span>
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2000
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<pre style="margin: 0;">-<span id="LC2000" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">arg</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;">r'</span></span>
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2001
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<pre style="margin: 0;">-<span id="LC2001" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getInScope</span></span>
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2002
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<pre style="margin: 0;">-<span id="LC2002" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitForAllTy_ty_maybe</span> <span class="n" style="color: #333;">t1'</span><span class="p">,</span> <span class="n" style="color: #333;">splitForAllTy_ty_maybe</span> <span class="n" style="color: #333;">t2'</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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2012
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<pre style="margin: 0;">+<span id="LC2012" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">co'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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2013
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<pre style="margin: 0;">+<span id="LC2013" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">arg'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">arg</span></span>
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2014
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<pre style="margin: 0;">+<span id="LC2014" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">t1'</span> <span class="n" style="color: #333;">t2'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">co'</span></span>
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2015
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<pre style="margin: 0;">+<span id="LC2015" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">s1</span> <span class="n" style="color: #333;">s2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">arg</span></span>
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2016
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<pre style="margin: 0;">+<span id="LC2016" class="line" lang="haskell"></span>
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2017
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<pre style="margin: 0;">+<span id="LC2017" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">arg</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">arg'</span><span class="p">)</span></span>
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2018
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<pre style="margin: 0;">+<span id="LC2018" class="line" lang="haskell"></span>
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2019
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<pre style="margin: 0;">+<span id="LC2019" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitForAllTy_ty_maybe</span> <span class="n" style="color: #333;">t1'</span><span class="p">,</span> <span class="n" style="color: #333;">splitForAllTy_ty_maybe</span> <span class="n" style="color: #333;">t2'</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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2003
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2020
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<pre style="margin: 0;"> <span id="LC2020" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over tvar</span></span>
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2004
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<pre style="margin: 0;">-<span id="LC2004" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tv1</span><span class="p">,</span><span class="n" style="color: #333;">t1</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tv2</span><span class="p">,</span><span class="n" style="color: #333;">t2</span><span class="p">))</span></span>
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2005
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<pre style="margin: 0;">-<span id="LC2005" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">k1'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tv1</span></span>
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2006
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<pre style="margin: 0;">-<span id="LC2006" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">k2'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tv2</span></span>
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2007
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<pre style="margin: 0;">-<span id="LC2007" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">k3</span><span class="p">,</span> <span class="n" style="color: #333;">k4</span><span class="p">,</span></span>
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2008
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<pre style="margin: 0;">-<span id="LC2008" class="line" lang="haskell"> <span class="n" style="color: #333;">substTyWithInScope</span> <span class="n" style="color: #333;">in_scope</span> <span class="p">[</span><span class="n" style="color: #333;">tv1</span><span class="p">]</span> <span class="p">[</span><span class="n" style="color: #333;">s1</span><span class="p">]</span> <span class="n" style="color: #333;">t1</span><span class="p">,</span></span>
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2009
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<pre style="margin: 0;">-<span id="LC2009" class="line" lang="haskell"> <span class="n" style="color: #333;">substTyWithInScope</span> <span class="n" style="color: #333;">in_scope</span> <span class="p">[</span><span class="n" style="color: #333;">tv2</span><span class="p">]</span> <span class="p">[</span><span class="n" style="color: #333;">s2</span><span class="p">]</span> <span class="n" style="color: #333;">t2</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span></span>
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2021
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<pre style="margin: 0;">+<span id="LC2021" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tv1</span><span class="p">,</span><span class="kr" style="font-weight: 600;">_</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">tv2</span><span class="p">,</span><span class="kr" style="font-weight: 600;">_</span><span class="p">))</span></span>
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2022
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<pre style="margin: 0;">+<span id="LC2022" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s1</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tv1</span></span>
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2023
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<pre style="margin: 0;">+<span id="LC2023" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s2</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">tv2</span></span>
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2024
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<pre style="margin: 0;">+<span id="LC2024" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InstCo</span> <span class="n" style="color: #333;">co'</span> <span class="n" style="color: #333;">arg'</span><span class="p">)</span></span>
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2010
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2025
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<pre style="margin: 0;"> <span id="LC2025" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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2011
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2026
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<pre style="margin: 0;"> <span id="LC2026" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Kind mis-match in inst coercion"</span><span class="p">)</span></span>
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2027
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<pre style="margin: 0;">+<span id="LC2027" class="line" lang="haskell"></span>
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2012
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2028
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<pre style="margin: 0;"> <span id="LC2028" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">case</span> <span class="p">(</span><span class="n" style="color: #333;">splitForAllTy_co_maybe</span> <span class="n" style="color: #333;">t1'</span><span class="p">,</span> <span class="n" style="color: #333;">splitForAllTy_co_maybe</span> <span class="n" style="color: #333;">t2'</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">of</span></span>
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2013
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2029
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<pre style="margin: 0;"> <span id="LC2029" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forall over covar</span></span>
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2014
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<pre style="margin: 0;">-<span id="LC2014" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">cv1</span><span class="p">,</span> <span class="n" style="color: #333;">t1</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">cv2</span><span class="p">,</span> <span class="n" style="color: #333;">t2</span><span class="p">))</span></span>
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2015
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<pre style="margin: 0;">-<span id="LC2015" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">k1'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv1</span></span>
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2016
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<pre style="margin: 0;">-<span id="LC2016" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">k2'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv2</span></span>
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2017
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<pre style="margin: 0;">-<span id="LC2017" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="n" style="color: #333;">s1'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">s1</span></span>
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2018
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<pre style="margin: 0;">-<span id="LC2018" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="n" style="color: #333;">s2'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">s2</span></span>
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2019
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<pre style="margin: 0;">-<span id="LC2019" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span></span>
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2020
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<pre style="margin: 0;">-<span id="LC2020" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">liftedTypeKind</span><span class="p">,</span> <span class="n" style="color: #333;">liftedTypeKind</span></span>
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2021
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<pre style="margin: 0;">-<span id="LC2021" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Weird typing rule for ForAllTy] in GHC.Core.TyCo.Rep</span></span>
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2022
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<pre style="margin: 0;">-<span id="LC2022" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">substTy</span> <span class="p">(</span><span class="n" style="color: #333;">mkCvSubst</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">unitVarEnv</span> <span class="n" style="color: #333;">cv1</span> <span class="n" style="color: #333;">s1'</span><span class="p">)</span> <span class="n" style="color: #333;">t1</span></span>
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2023
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<pre style="margin: 0;">-<span id="LC2023" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">substTy</span> <span class="p">(</span><span class="n" style="color: #333;">mkCvSubst</span> <span class="n" style="color: #333;">in_scope</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">unitVarEnv</span> <span class="n" style="color: #333;">cv2</span> <span class="n" style="color: #333;">s2'</span><span class="p">)</span> <span class="n" style="color: #333;">t2</span></span>
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2024
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<pre style="margin: 0;">-<span id="LC2024" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="p">}</span></span>
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2030
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<pre style="margin: 0;">+<span id="LC2030" class="line" lang="haskell"> <span class="p">{</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">cv1</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">cv2</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">))</span></span>
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2031
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<pre style="margin: 0;">+<span id="LC2031" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s1</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv1</span></span>
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2032
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<pre style="margin: 0;">+<span id="LC2032" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s2</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">cv2</span></span>
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2033
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<pre style="margin: 0;">+<span id="LC2033" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">s1</span></span>
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2034
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<pre style="margin: 0;">+<span id="LC2034" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionTy</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">s2</span></span>
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2035
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<pre style="margin: 0;">+<span id="LC2035" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InstCo</span> <span class="n" style="color: #333;">co'</span> <span class="n" style="color: #333;">arg'</span><span class="p">)</span></span>
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2025
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2036
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<pre style="margin: 0;"> <span id="LC2036" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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2026
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2037
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<pre style="margin: 0;"> <span id="LC2037" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Kind mis-match in inst coercion"</span><span class="p">)</span></span>
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2038
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<pre style="margin: 0;">+<span id="LC2038" class="line" lang="haskell"></span>
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2027
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2039
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<pre style="margin: 0;"> <span id="LC2039" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad argument of inst"</span><span class="p">)</span> <span class="p">}}}</span></span>
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2028
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2040
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<pre style="margin: 0;"> <span id="LC2040" class="line" lang="haskell"></span>
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2029
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2041
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<pre style="margin: 0;"> <span id="LC2041" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomInstCo</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">ind</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2031" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2031,73 +2043,69 @@ lintCoercion co@(AxiomInstCo con ind cos)</td>
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2031
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2043
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<pre style="margin: 0;"> <span id="LC2043" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"index out of range"</span><span class="p">))</span></span>
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2032
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2044
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<pre style="margin: 0;"> <span id="LC2044" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">CoAxBranch</span> <span class="p">{</span> <span class="n" style="color: #333;">cab_tvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ktvs</span></span>
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2033
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2045
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<pre style="margin: 0;"> <span id="LC2045" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">cab_cvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cvs</span></span>
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2034
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<pre style="margin: 0;">-<span id="LC2034" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">cab_roles</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">roles</span></span>
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2035
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<pre style="margin: 0;">-<span id="LC2035" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">cab_lhs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">lhs</span></span>
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2036
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<pre style="margin: 0;">-<span id="LC2036" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">cab_rhs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">rhs</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coAxiomNthBranch</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">ind</span></span>
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2046
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<pre style="margin: 0;">+<span id="LC2046" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">cab_roles</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">roles</span> <span class="p">}</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coAxiomNthBranch</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">ind</span></span>
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2037
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2047
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<pre style="margin: 0;"> <span id="LC2047" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">cos</span> <span class="p">`</span><span class="n" style="color: #333;">equalLength</span><span class="p">`</span> <span class="p">(</span><span class="n" style="color: #333;">ktvs</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">cvs</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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2038
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2048
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<pre style="margin: 0;"> <span id="LC2048" class="line" lang="haskell"> <span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"lengths"</span><span class="p">)</span></span>
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2049
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<pre style="margin: 0;">+<span id="LC2049" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">cos'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">mapM</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">cos</span></span>
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2039
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2050
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<pre style="margin: 0;"> <span id="LC2050" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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2040
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2051
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<pre style="margin: 0;"> <span id="LC2051" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">empty_subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">zapTCvSubst</span> <span class="n" style="color: #333;">subst</span></span>
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2041
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<pre style="margin: 0;">-<span id="LC2041" class="line" lang="haskell"> <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">subst_l</span><span class="p">,</span> <span class="n" style="color: #333;">subst_r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">foldlM</span> <span class="n" style="color: #333;">check_ki</span></span>
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2042
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<pre style="margin: 0;">-<span id="LC2042" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">empty_subst</span><span class="p">,</span> <span class="n" style="color: #333;">empty_subst</span><span class="p">)</span></span>
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2043
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<pre style="margin: 0;">-<span id="LC2043" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">zip3</span> <span class="p">(</span><span class="n" style="color: #333;">ktvs</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span> <span class="n" style="color: #333;">roles</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
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2044
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<pre style="margin: 0;">-<span id="LC2044" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">lhs'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substTys</span> <span class="n" style="color: #333;">subst_l</span> <span class="n" style="color: #333;">lhs</span></span>
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2045
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<pre style="margin: 0;">-<span id="LC2045" class="line" lang="haskell"> <span class="n" style="color: #333;">rhs'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst_r</span> <span class="n" style="color: #333;">rhs</span></span>
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2046
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<pre style="margin: 0;">-<span id="LC2046" class="line" lang="haskell"> <span class="n" style="color: #333;">fam_tc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coAxiomTyCon</span> <span class="n" style="color: #333;">con</span></span>
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2052
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<pre style="margin: 0;">+<span id="LC2052" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">foldlM</span> <span class="n" style="color: #333;">check_ki</span> <span class="p">(</span><span class="n" style="color: #333;">empty_subst</span><span class="p">,</span> <span class="n" style="color: #333;">empty_subst</span><span class="p">)</span></span>
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2053
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<pre style="margin: 0;">+<span id="LC2053" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">zip3</span> <span class="p">(</span><span class="n" style="color: #333;">ktvs</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span> <span class="n" style="color: #333;">roles</span> <span class="n" style="color: #333;">cos'</span><span class="p">)</span></span>
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2054
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<pre style="margin: 0;">+<span id="LC2054" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">fam_tc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coAxiomTyCon</span> <span class="n" style="color: #333;">con</span></span>
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2047
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2055
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<pre style="margin: 0;"> <span id="LC2055" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">checkAxInstCo</span> <span class="n" style="color: #333;">co</span> <span class="kr" style="font-weight: 600;">of</span></span>
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2048
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2056
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<pre style="margin: 0;"> <span id="LC2056" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">bad_branch</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">bad_ax</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"inconsistent with"</span> <span class="o" style="font-weight: 600;"><+></span></span>
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2049
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2057
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<pre style="margin: 0;"> <span id="LC2057" class="line" lang="haskell"> <span class="n" style="color: #333;">pprCoAxBranch</span> <span class="n" style="color: #333;">fam_tc</span> <span class="n" style="color: #333;">bad_branch</span></span>
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2050
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2058
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<pre style="margin: 0;"> <span id="LC2058" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2051
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<pre style="margin: 0;">-<span id="LC2051" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">s2</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkTyConApp</span> <span class="n" style="color: #333;">fam_tc</span> <span class="n" style="color: #333;">lhs'</span></span>
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2052
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<pre style="margin: 0;">-<span id="LC2052" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">rhs'</span><span class="p">,</span> <span class="n" style="color: #333;">s2</span><span class="p">,</span> <span class="n" style="color: #333;">rhs'</span><span class="p">,</span> <span class="n" style="color: #333;">coAxiomRole</span> <span class="n" style="color: #333;">con</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC2059" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomInstCo</span> <span class="n" style="color: #333;">con</span> <span class="n" style="color: #333;">ind</span> <span class="n" style="color: #333;">cos'</span><span class="p">)</span> <span class="p">}</span></span>
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2053
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2060
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<pre style="margin: 0;"> <span id="LC2060" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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2054
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<td class="diff-line-num new_line" data-linenumber="2061" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2061
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<pre style="margin: 0;"> <span id="LC2061" class="line" lang="haskell"> <span class="n" style="color: #333;">bad_ax</span> <span class="n" style="color: #333;">what</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addErrL</span> <span class="p">(</span><span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad axiom application"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">parens</span> <span class="n" style="color: #333;">what</span><span class="p">)</span></span>
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2055
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2062
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<pre style="margin: 0;"> <span id="LC2062" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span></span>
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2056
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2063
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<pre style="margin: 0;"> <span id="LC2063" class="line" lang="haskell"></span>
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2057
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<pre style="margin: 0;">-<span id="LC2057" class="line" lang="haskell"> <span class="n" style="color: #333;">check_ki</span> <span class="p">(</span><span class="n" style="color: #333;">subst_l</span><span class="p">,</span> <span class="n" style="color: #333;">subst_r</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">role</span><span class="p">,</span> <span class="n" style="color: #333;">arg</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="2058" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
2058
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<pre style="margin: 0;">-<span id="LC2058" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">k'</span><span class="p">,</span> <span class="n" style="color: #333;">k''</span><span class="p">,</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span> <span class="n" style="color: #333;">t'</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">arg</span></span>
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2059
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<pre style="margin: 0;">-<span id="LC2059" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">arg</span> <span class="n" style="color: #333;">role</span> <span class="n" style="color: #333;">r</span></span>
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2064
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<pre style="margin: 0;">+<span id="LC2064" class="line" lang="haskell"> <span class="n" style="color: #333;">check_ki</span> <span class="p">(</span><span class="n" style="color: #333;">subst_l</span><span class="p">,</span> <span class="n" style="color: #333;">subst_r</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">role</span><span class="p">,</span> <span class="n" style="color: #333;">arg'</span><span class="p">)</span></span>
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2065
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<pre style="margin: 0;">+<span id="LC2065" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="kr" style="font-weight: 600;">let</span> <span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">s'</span> <span class="n" style="color: #333;">t'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">coercionKind</span> <span class="n" style="color: #333;">arg'</span></span>
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2066
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<pre style="margin: 0;">+<span id="LC2066" class="line" lang="haskell"> <span class="n" style="color: #333;">sk'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">s'</span></span>
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2067
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<pre style="margin: 0;">+<span id="LC2067" class="line" lang="haskell"> <span class="n" style="color: #333;">tk'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">t'</span></span>
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2068
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<pre style="margin: 0;">+<span id="LC2068" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">arg'</span> <span class="n" style="color: #333;">role</span> <span class="p">(</span><span class="n" style="color: #333;">coercionRole</span> <span class="n" style="color: #333;">arg'</span><span class="p">)</span></span>
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2060
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2069
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<pre style="margin: 0;"> <span id="LC2069" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">ktv_kind_l</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst_l</span> <span class="p">(</span><span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">ktv</span><span class="p">)</span></span>
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2061
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2070
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<pre style="margin: 0;"> <span id="LC2070" class="line" lang="haskell"> <span class="n" style="color: #333;">ktv_kind_r</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst_r</span> <span class="p">(</span><span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">ktv</span><span class="p">)</span></span>
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2062
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<pre style="margin: 0;">-<span id="LC2062" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;">k'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">ktv_kind_l</span><span class="p">)</span></span>
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2063
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<pre style="margin: 0;">-<span id="LC2063" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"check_ki1"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">k'</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv_kind_l</span> <span class="p">]</span> <span class="p">))</span></span>
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2064
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<pre style="margin: 0;">-<span id="LC2064" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right">k'</span>'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">ktv_kind_r</span><span class="p">)</span></span>
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2065
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<pre style="margin: 0;">-<span id="LC2065" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"check_ki2"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">k'</span>'</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv_kind_r</span> <span class="p">]</span> <span class="p">))</span></span>
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2071
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<pre style="margin: 0;">+<span id="LC2071" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right">s</span>k'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">ktv_kind_l</span><span class="p">)</span></span>
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2072
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<pre style="margin: 0;">+<span id="LC2072" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"check_ki1"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">s</span>k'</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv_kind_l</span> <span class="p">]</span> <span class="p">))</span></span>
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2073
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<pre style="margin: 0;">+<span id="LC2073" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">unless</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right">tk</span>'</span> <span class="p">`</span><span class="n" style="color: #333;">eqType</span><span class="p">`</span> <span class="n" style="color: #333;">ktv_kind_r</span><span class="p">)</span></span>
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2074
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<pre style="margin: 0;">+<span id="LC2074" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">bad_ax</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"check_ki2"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">tk</span>'</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv</span><span class="p">,</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ktv_kind_r</span> <span class="p">]</span> <span class="p">))</span></span>
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2066
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2075
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<pre style="margin: 0;"> <span id="LC2075" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">extendTCvSubst</span> <span class="n" style="color: #333;">subst_l</span> <span class="n" style="color: #333;">ktv</span> <span class="n" style="color: #333;">s'</span><span class="p">,</span></span>
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2067
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2076
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<pre style="margin: 0;"> <span id="LC2076" class="line" lang="haskell"> <span class="n" style="color: #333;">extendTCvSubst</span> <span class="n" style="color: #333;">subst_r</span> <span class="n" style="color: #333;">ktv</span> <span class="n" style="color: #333;">t'</span><span class="p">)</span> <span class="p">}</span></span>
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2068
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2077
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<pre style="margin: 0;"> <span id="LC2077" class="line" lang="haskell"></span>
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2069
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2078
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<pre style="margin: 0;"> <span id="LC2078" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">KindCo</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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2070
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<pre style="margin: 0;">-<span id="LC2070" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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2071
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<pre style="margin: 0;">-<span id="LC2071" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">liftedTypeKind</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">liftedTypeKind</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Nominal</span></span><span class="p">)</span> <span class="p">}</span></span>
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2079
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<pre style="margin: 0;">+<span id="LC2079" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">co'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co</span></span>
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2080
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<pre style="margin: 0;">+<span id="LC2080" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">KindCo</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co'</span></span><span class="p">)</span> <span class="p">}</span></span>
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2072
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2081
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<pre style="margin: 0;"> <span id="LC2081" class="line" lang="haskell"></span>
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2073
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2082
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<pre style="margin: 0;"> <span id="LC2082" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SubCo</span> <span class="n" style="color: #333;">co'</span><span class="p">)</span></span>
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2074
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<pre style="margin: 0;">-<span id="LC2074" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">s</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">t</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="p"><span class="idiff right">)</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co'</span></span>
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2075
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<pre style="margin: 0;">-<span id="LC2075" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co'</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="n" style="color: #333;"><span class="idiff left right">r</span></span></span>
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2076
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<pre style="margin: 0;">-<span id="LC2076" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left">k1</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">k2</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">s</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">t</span></span><span class="p"><span class="idiff">,</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Representational</span></span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC2077" class="line" lang="haskell"></span>
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2078
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<pre style="margin: 0;">-<span id="LC2078" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">this</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomRuleCo</span> <span class="n" style="color: #333;"><span class="idiff left">co</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">c</span>s</span><span class="p">)</span></span>
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2079
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<pre style="margin: 0;">-<span id="LC2079" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left">eqs</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">mapM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">lintCoercion</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">c</span>s</span></span>
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2080
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<pre style="margin: 0;">-<span id="LC2080" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint<span class="idiff left">Roles</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coaxrAsmpRoles</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">eqs</span></span></span>
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2081
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<pre style="margin: 0;">-<span id="LC2081" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">coaxrProves</span> <span class="n" style="color: #333;"><span class="idiff left">co</span></span><span class="idiff"> </span><span class="p"><span class="idiff">[</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Pair</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">l</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">|</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">l</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="p"><span class="idiff">,</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">eqs</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">]</span></span> <span class="kr" style="font-weight: 600;">of</span></span>
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2083
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<pre style="margin: 0;">+<span id="LC2083" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left right">co'</span></span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">co'</span></span>
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2084
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<pre style="margin: 0;">+<span id="LC2084" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintRole</span> <span class="n" style="color: #333;">co'</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionRole</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co'</span></span><span class="p"><span class="idiff right">)</span></span></span>
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2085
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<pre style="margin: 0;">+<span id="LC2085" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">SubCo</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co'</span></span><span class="p">)</span> <span class="p">}</span></span>
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2086
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<pre style="margin: 0;">+<span id="LC2086" class="line" lang="haskell"></span>
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2087
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<pre style="margin: 0;">+<span id="LC2087" class="line" lang="haskell"><span class="n" style="color: #333;">lintCoercion</span> <span class="n" style="color: #333;">this</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomRuleCo</span> <span class="n" style="color: #333;"><span class="idiff left">ax</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co</span>s</span><span class="p">)</span></span>
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2088
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<pre style="margin: 0;">+<span id="LC2088" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left">cos'</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><-</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">mapM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">lintCoercion</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co</span>s</span></span>
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2089
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<pre style="margin: 0;">+<span id="LC2089" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lint<span class="idiff left">_roles</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">0</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coaxrAsmpRoles</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ax</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">cos'</span></span></span>
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2090
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<pre style="margin: 0;">+<span id="LC2090" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">coaxrProves</span> <span class="n" style="color: #333;"><span class="idiff left">ax</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">map</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">coercionKind</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">cos'</span></span><span class="p"><span class="idiff right">)</span></span> <span class="kr" style="font-weight: 600;">of</span></span>
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2082
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2091
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<pre style="margin: 0;"> <span id="LC2091" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Malformed use of AxiomRuleCo"</span> <span class="p">[</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">this</span> <span class="p">]</span></span>
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2083
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<pre style="margin: 0;">-<span id="LC2083" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Pair</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">r</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span></span>
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2084
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<pre style="margin: 0;">-<span id="LC2084" class="line" lang="haskell"> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">l</span><span class="p">,</span> <span class="n" style="color: #333;">typeKind</span> <span class="n" style="color: #333;">r</span><span class="p">,</span> <span class="n" style="color: #333;">l</span><span class="p">,</span> <span class="n" style="color: #333;">r</span><span class="p">,</span> <span class="n" style="color: #333;">coaxrRole</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC2092" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomRuleCo</span> <span class="n" style="color: #333;">ax</span> <span class="n" style="color: #333;">cos'</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC2093" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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2094
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<pre style="margin: 0;"> <span id="LC2094" class="line" lang="haskell"> <span class="n" style="color: #333;">err</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span></span>
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2087
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<pre style="margin: 0;">-<span id="LC2087" class="line" lang="haskell"> <span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff">hang</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">text</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">m</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">2</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vcat</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">text</span></span><span class="idiff"> </span><span class="s" style="color: #d14;"><span class="idiff">"Rule:"</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><+></span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coaxrName</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co</span></span><span class="p">)</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2095" class="line" lang="haskell"> <span class="n" style="color: #333;"><span class="idiff left">hang</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">text</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">m</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="mi" style="color: #099;"><span class="idiff">2</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">vcat</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">text</span></span><span class="idiff"> </span><span class="s" style="color: #d14;"><span class="idiff">"Rule:"</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff"><+></span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ppr</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">coaxrName</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">ax</span></span><span class="p">)</span> <span class="o" style="font-weight: 600;">:</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span></span>
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2096
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<pre style="margin: 0;"> <span id="LC2096" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2089" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left">Roles</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">n</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">e</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">es</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="p"><span class="idiff">((</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="p"><span class="idiff">,</span></span><span class="n" style="color: #333;"><span class="idiff">r</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r</span>s</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2090" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;"><span class="idiff left">r</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">lintRoles</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">n</span></span><span class="o" style="font-weight: 600;"><span class="idiff">+</span></span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">es</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">r</span>s</span></span>
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<pre style="margin: 0;">+<span id="LC2097" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left">_roles</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">n</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">e</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">es</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">:</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co</span>s</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2098" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">e</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;"><span class="idiff left">coercionRole</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">lint_roles</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">n</span></span><span class="o" style="font-weight: 600;"><span class="idiff">+</span></span><span class="mi" style="color: #099;"><span class="idiff">1</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">es</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">co</span>s</span></span>
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<pre style="margin: 0;"> <span id="LC2099" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Argument roles mismatch"</span></span>
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2100
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<pre style="margin: 0;"> <span id="LC2100" class="line" lang="haskell"> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In argument:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">int</span> <span class="p">(</span><span class="n" style="color: #333;">n</span><span class="o" style="font-weight: 600;">+</span><span class="mi" style="color: #099;">1</span><span class="p">)</span></span>
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2101
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<pre style="margin: 0;"> <span id="LC2101" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Expected:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">e</span></span>
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<pre style="margin: 0;">-<span id="LC2094" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Found:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;"><span class="idiff left right">r</span></span> <span class="p">]</span></span>
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<pre style="margin: 0;">-<span id="LC2095" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">R</span>oles</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2096
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<pre style="margin: 0;">-<span id="LC2096" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">R</span>oles</span> <span class="n" style="color: #333;">n</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">rs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Too many coercion arguments"</span></span>
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2102
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<pre style="margin: 0;">+<span id="LC2102" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Found:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">coercionRole</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">co</span></span><span class="p"><span class="idiff right">)</span></span> <span class="p">]</span></span>
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2103
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<pre style="margin: 0;">+<span id="LC2103" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">_r</span>oles</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<td class="diff-line-num new new_line" data-linenumber="2104" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#ddfbe6">
2104
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<pre style="margin: 0;">+<span id="LC2104" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">_r</span>oles</span> <span class="n" style="color: #333;">n</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">rs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Too many coercion arguments"</span></span>
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2097
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2105
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<pre style="margin: 0;"> <span id="LC2105" class="line" lang="haskell"> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Expected:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">int</span> <span class="n" style="color: #333;">n</span></span>
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2098
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2106
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<pre style="margin: 0;"> <span id="LC2106" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Provided:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">int</span> <span class="p">(</span><span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">+</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">rs</span><span class="p">)</span> <span class="p">]</span></span>
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2099
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2107
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<pre style="margin: 0;"> <span id="LC2107" class="line" lang="haskell"></span>
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2100
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<pre style="margin: 0;">-<span id="LC2100" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">R</span>oles</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">es</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Not enough coercion arguments"</span></span>
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2108
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<pre style="margin: 0;">+<span id="LC2108" class="line" lang="haskell"> <span class="n" style="color: #333;">lint<span class="idiff left right">_r</span>oles</span> <span class="n" style="color: #333;">n</span> <span class="n" style="color: #333;">es</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">err</span> <span class="s" style="color: #d14;">"Not enough coercion arguments"</span></span>
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2101
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2109
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<pre style="margin: 0;"> <span id="LC2109" class="line" lang="haskell"> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Expected:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">int</span> <span class="p">(</span><span class="n" style="color: #333;">n</span> <span class="o" style="font-weight: 600;">+</span> <span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">es</span><span class="p">)</span></span>
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2102
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2110
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<pre style="margin: 0;"> <span id="LC2110" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Provided:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">int</span> <span class="n" style="color: #333;">n</span> <span class="p">]</span></span>
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2103
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2111
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<pre style="margin: 0;"> <span id="LC2111" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2106" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2114" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2106,13 +2114,6 @@ lintCoercion (HoleCo h)</td>
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2106
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2114
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<pre style="margin: 0;"> <span id="LC2114" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">lintCoercion</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoVarCo</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">h</span><span class="p">))</span> <span class="p">}</span></span>
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2115
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<pre style="margin: 0;"> <span id="LC2115" class="line" lang="haskell"></span>
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2108
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2116
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<pre style="margin: 0;"> <span id="LC2116" class="line" lang="haskell"></span>
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2109
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<pre style="margin: 0;">-<span id="LC2109" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">----------</span></span>
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2110
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<pre style="margin: 0;">-<span id="LC2110" class="line" lang="haskell"><span class="n" style="color: #333;">lintUnliftedCoVar</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2111
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<pre style="margin: 0;">-<span id="LC2111" class="line" lang="haskell"><span class="n" style="color: #333;">lintUnliftedCoVar</span> <span class="n" style="color: #333;">cv</span></span>
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2112
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<pre style="margin: 0;">-<span id="LC2112" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">when</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isUnliftedType</span> <span class="p">(</span><span class="n" style="color: #333;">coVarKind</span> <span class="n" style="color: #333;">cv</span><span class="p">)))</span> <span class="o" style="font-weight: 600;">$</span></span>
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2113
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<pre style="margin: 0;">-<span id="LC2113" class="line" lang="haskell"> <span class="n" style="color: #333;">failWithL</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Bad lifted equality:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cv</span></span>
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2114
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<pre style="margin: 0;">-<span id="LC2114" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="n" style="color: #333;">coVarKind</span> <span class="n" style="color: #333;">cv</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC2115" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2117" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{-</span></span>
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2118
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<pre style="margin: 0;"> <span id="LC2118" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">************************************************************************</span></span>
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2119
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<pre style="margin: 0;"> <span id="LC2119" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2129,12 +2130,13 @@ data LintEnv</td>
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<pre style="margin: 0;"> <span id="LC2130" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2131" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_subst</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span> <span class="c1" style="color: #998; font-style: italic;">-- Current TyCo substitution</span></span>
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<pre style="margin: 0;"> <span id="LC2132" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Linting type lets]</span></span>
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<pre style="margin: 0;">-<span id="LC2132" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- /Only/ substitutes for type variables;</span></span>
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<pre style="margin: 0;">-<span id="LC2133" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- but might clone CoVars</span></span>
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<pre style="margin: 0;">-<span id="LC2134" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We also use le_subst to keep track of</span></span>
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<pre style="margin: 0;">-<span id="LC2135" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in-scope TyVars and CoVars</span></span>
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<pre style="margin: 0;">+<span id="LC2133" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- /Only/ substitutes for type variables;</span></span>
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<pre style="margin: 0;">+<span id="LC2134" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- but might clone CoVars</span></span>
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<pre style="margin: 0;">+<span id="LC2135" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- We also use le_subst to keep track of</span></span>
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<pre style="margin: 0;">+<span id="LC2136" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in-scope TyVars and CoVars (but not Ids)</span></span>
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<pre style="margin: 0;">+<span id="LC2137" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Range of the TCvSubst is LintedType/LintedCo</span></span>
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<pre style="margin: 0;"> <span id="LC2138" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2137" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_ids</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span> <span class="c1" style="color: #998; font-style: italic;">-- In-scope Ids</span></span>
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<pre style="margin: 0;">+<span id="LC2139" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_ids</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span> <span class="c1" style="color: #998; font-style: italic;">-- In-scope Ids<span class="idiff left right">; all Linted</span></span></span>
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<pre style="margin: 0;"> <span id="LC2140" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_joins</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span> <span class="c1" style="color: #998; font-style: italic;">-- Join points in scope that are valid</span></span>
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<pre style="margin: 0;"> <span id="LC2141" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- A subset of the InScopeSet in le_subst</span></span>
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2142
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<pre style="margin: 0;"> <span id="LC2142" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Join points]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2266,6 +2268,7 @@ instance HasDynFlags LintM where</td>
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2268
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<pre style="margin: 0;"> <span id="LC2268" class="line" lang="haskell"></span>
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2269
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<pre style="margin: 0;"> <span id="LC2269" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">LintLocInfo</span></span>
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2270
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<pre style="margin: 0;"> <span id="LC2270" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">RhsOf</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="c1" style="color: #998; font-style: italic;">-- The variable bound</span></span>
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<pre style="margin: 0;">+<span id="LC2271" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">OccOf</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="c1" style="color: #998; font-style: italic;">-- Occurrence of id</span></span>
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2272
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<pre style="margin: 0;"> <span id="LC2272" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">LambdaBodyOf</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="c1" style="color: #998; font-style: italic;">-- The lambda-binder</span></span>
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2273
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<pre style="margin: 0;"> <span id="LC2273" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">UnfoldingOf</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="c1" style="color: #998; font-style: italic;">-- Unfolding of a binder</span></span>
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<pre style="margin: 0;"> <span id="LC2274" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">BodyOfLetRec</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Id</span><span class="p">]</span> <span class="c1" style="color: #998; font-style: italic;">-- One of the binders</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2278,7 +2281,6 @@ data LintLocInfo</td>
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<pre style="margin: 0;"> <span id="LC2281" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">ImportedUnfolding</span> <span class="kt" style="color: #458; font-weight: 600;">SrcLoc</span> <span class="c1" style="color: #998; font-style: italic;">-- Some imported unfolding (ToDo: say which)</span></span>
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<pre style="margin: 0;"> <span id="LC2282" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">TopLevelBindings</span></span>
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<pre style="margin: 0;"> <span id="LC2283" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">InType</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Inside a type</span></span>
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<pre style="margin: 0;">-<span id="LC2281" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">InKind</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kt" style="color: #458; font-weight: 600;">Kind</span> <span class="c1" style="color: #998; font-style: italic;">-- Inside a kind</span></span>
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<pre style="margin: 0;"> <span id="LC2284" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">InCo</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="c1" style="color: #998; font-style: italic;">-- Inside a coercion</span></span>
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<pre style="margin: 0;"> <span id="LC2285" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2286" class="line" lang="haskell"><span class="n" style="color: #333;">initL</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DynFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintFlags</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="p">]</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2341,7 +2343,7 @@ addWarnL msg = LintM $ \ env (warns,errs) -></td>
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<pre style="margin: 0;"> <span id="LC2343" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2344" class="line" lang="haskell"><span class="n" style="color: #333;">addMsg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintEnv</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bag</span> <span class="kt" style="color: #458; font-weight: 600;">MsgDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">MsgDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bag</span> <span class="kt" style="color: #458; font-weight: 600;">MsgDoc</span></span>
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<pre style="margin: 0;"> <span id="LC2345" class="line" lang="haskell"><span class="n" style="color: #333;">addMsg</span> <span class="n" style="color: #333;">is_error</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">msgs</span> <span class="n" style="color: #333;">msg</span></span>
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<pre style="margin: 0;">-<span id="LC2344" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT</span><span class="p"><span class="idiff left">(</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">notNull</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">loc_msgs</span></span> <span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2346" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT<span class="idiff left">2</span></span><span class="p"><span class="idiff">(</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">notNull</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">loc_msgs</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">msg</span></span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2347" class="line" lang="haskell"> <span class="n" style="color: #333;">msgs</span> <span class="p">`</span><span class="n" style="color: #333;">snocBag</span><span class="p">`</span> <span class="n" style="color: #333;">mk_msg</span> <span class="n" style="color: #333;">msg</span></span>
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<pre style="margin: 0;"> <span id="LC2348" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC2349" class="line" lang="haskell"> <span class="n" style="color: #333;">loc_msgs</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[(</span><span class="kt" style="color: #458; font-weight: 600;">SrcLoc</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span><span class="p">)]</span> <span class="c1" style="color: #998; font-style: italic;">-- Innermost first</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2373,16 +2375,15 @@ inCasePat = LintM $ \ env errs -> (Just (is_case_pat env), errs)</td>
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2373
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<pre style="margin: 0;"> <span id="LC2375" class="line" lang="haskell"> <span class="n" style="color: #333;">is_case_pat</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LE</span> <span class="p">{</span> <span class="n" style="color: #333;">le_loc</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">CasePat</span> <span class="p">{}</span> <span class="o" style="font-weight: 600;">:</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">})</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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2376
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<pre style="margin: 0;"> <span id="LC2376" class="line" lang="haskell"> <span class="n" style="color: #333;">is_case_pat</span> <span class="n" style="color: #333;">_other</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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2377
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<pre style="margin: 0;"> <span id="LC2377" class="line" lang="haskell"></span>
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2376
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<pre style="margin: 0;">-<span id="LC2376" class="line" lang="haskell"><span class="n" style="color: #333;">addInScopeTyCoVar</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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2377
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<pre style="margin: 0;">-<span id="LC2377" class="line" lang="haskell"><span class="n" style="color: #333;">addInScopeTyCoVar</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">m</span></span>
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2378
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<pre style="margin: 0;">-<span id="LC2378" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span></span>
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2379
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<pre style="margin: 0;">-<span id="LC2379" class="line" lang="haskell"> <span class="n" style="color: #333;">unLintM</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">le_subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendTCvInScope</span> <span class="p">(</span><span class="n" style="color: #333;">le_subst</span> <span class="n" style="color: #333;">env</span><span class="p">)</span> <span class="n" style="color: #333;">var</span> <span class="p">})</span> <span class="n" style="color: #333;">errs</span></span>
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<pre style="margin: 0;">-<span id="LC2380" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2378" class="line" lang="haskell"><span class="n" style="color: #333;">addInScopeId</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC2379" class="line" lang="haskell"><span class="n" style="color: #333;">addInScopeId</span> <span class="n" style="color: #333;">id</span> <span class="n" style="color: #333;">m</span></span>
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<pre style="margin: 0;">-<span id="LC2383" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span></span>
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2384
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<pre style="margin: 0;">-<span id="LC2384" class="line" lang="haskell"> <span class="n" style="color: #333;">unLintM</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">le_ids</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="p">(</span><span class="n" style="color: #333;">le_ids</span> <span class="n" style="color: #333;">env</span><span class="p">)</span> <span class="n" style="color: #333;">id</span></span>
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<pre style="margin: 0;">-<span id="LC2385" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">delVarSet</span> <span class="p">(</span><span class="n" style="color: #333;">le_joins</span> <span class="n" style="color: #333;">env</span><span class="p">)</span> <span class="n" style="color: #333;">id</span> <span class="p">})</span> <span class="n" style="color: #333;">errs</span></span>
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<pre style="margin: 0;">+<span id="LC2380" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LE</span> <span class="p">{</span> <span class="n" style="color: #333;">le_ids</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">id_set</span><span class="p">,</span> <span class="n" style="color: #333;">le_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">join_set</span> <span class="p">})</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span></span>
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<pre style="margin: 0;">+<span id="LC2381" class="line" lang="haskell"> <span class="n" style="color: #333;">unLintM</span> <span class="n" style="color: #333;">m</span> <span class="p">(</span><span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">le_ids</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">id_set</span> <span class="n" style="color: #333;">id</span></span>
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<pre style="margin: 0;">+<span id="LC2382" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">le_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">add_joins</span> <span class="n" style="color: #333;">join_set</span> <span class="p">})</span> <span class="n" style="color: #333;">errs</span></span>
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<pre style="margin: 0;">+<span id="LC2383" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC2384" class="line" lang="haskell"> <span class="n" style="color: #333;">add_joins</span> <span class="n" style="color: #333;">join_set</span></span>
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<pre style="margin: 0;">+<span id="LC2385" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">id</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">join_set</span> <span class="n" style="color: #333;">id</span> <span class="c1" style="color: #998; font-style: italic;">-- Overwrite with new arity</span></span>
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<pre style="margin: 0;">+<span id="LC2386" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">delVarSet</span> <span class="n" style="color: #333;">join_set</span> <span class="n" style="color: #333;">id</span> <span class="c1" style="color: #998; font-style: italic;">-- Remove any existing binding</span></span>
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2387
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<pre style="margin: 0;"> <span id="LC2387" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2388" class="line" lang="haskell"><span class="n" style="color: #333;">getInScopeIds</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span></span>
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<pre style="margin: 0;"> <span id="LC2389" class="line" lang="haskell"><span class="n" style="color: #333;">getInScopeIds</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">le_ids</span> <span class="n" style="color: #333;">env</span><span class="p">),</span> <span class="n" style="color: #333;">errs</span><span class="p">))</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2404,13 +2405,6 @@ markAllJoinsBadIf :: Bool -> LintM a -> LintM a</td>
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<pre style="margin: 0;"> <span id="LC2405" class="line" lang="haskell"><span class="n" style="color: #333;">markAllJoinsBadIf</span> <span class="kt" style="color: #458; font-weight: 600;">True</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">markAllJoinsBad</span> <span class="n" style="color: #333;">m</span></span>
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<pre style="margin: 0;"> <span id="LC2406" class="line" lang="haskell"><span class="n" style="color: #333;">markAllJoinsBadIf</span> <span class="kt" style="color: #458; font-weight: 600;">False</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">m</span></span>
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<pre style="margin: 0;"> <span id="LC2407" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2407" class="line" lang="haskell"><span class="n" style="color: #333;">addGoodJoins</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Var</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">-<span id="LC2408" class="line" lang="haskell"><span class="n" style="color: #333;">addGoodJoins</span> <span class="n" style="color: #333;">vars</span> <span class="n" style="color: #333;">thing_inside</span></span>
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<pre style="margin: 0;">-<span id="LC2409" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="o" style="font-weight: 600;">$</span> <span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">unLintM</span> <span class="n" style="color: #333;">thing_inside</span> <span class="p">(</span><span class="n" style="color: #333;">add_joins</span> <span class="n" style="color: #333;">env</span><span class="p">)</span> <span class="n" style="color: #333;">errs</span></span>
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<pre style="margin: 0;">-<span id="LC2410" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC2411" class="line" lang="haskell"> <span class="n" style="color: #333;">add_joins</span> <span class="n" style="color: #333;">env</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">env</span> <span class="p">{</span> <span class="n" style="color: #333;">le_joins</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">le_joins</span> <span class="n" style="color: #333;">env</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSetList</span><span class="p">`</span> <span class="n" style="color: #333;">join_ids</span> <span class="p">}</span></span>
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<pre style="margin: 0;">-<span id="LC2412" class="line" lang="haskell"> <span class="n" style="color: #333;">join_ids</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">filter</span> <span class="n" style="color: #333;">isJoinId</span> <span class="n" style="color: #333;">vars</span></span>
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2413
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<pre style="margin: 0;">-<span id="LC2413" class="line" lang="haskell"></span>
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2414
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2408
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<pre style="margin: 0;"> <span id="LC2408" class="line" lang="haskell"><span class="n" style="color: #333;">getValidJoins</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">IdSet</span></span>
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2415
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2409
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<pre style="margin: 0;"> <span id="LC2409" class="line" lang="haskell"><span class="n" style="color: #333;">getValidJoins</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">le_joins</span> <span class="n" style="color: #333;">env</span><span class="p">),</span> <span class="n" style="color: #333;">errs</span><span class="p">))</span></span>
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2416
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2410
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<pre style="margin: 0;"> <span id="LC2410" class="line" lang="haskell"></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2420,12 +2414,6 @@ getTCvSubst = LintM (\ env errs -> (Just (le_subst env), errs))</td>
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2420
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2414
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<pre style="margin: 0;"> <span id="LC2414" class="line" lang="haskell"><span class="n" style="color: #333;">getInScope</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">InScopeSet</span></span>
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2421
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2415
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<pre style="margin: 0;"> <span id="LC2415" class="line" lang="haskell"><span class="n" style="color: #333;">getInScope</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">errs</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">getTCvInScope</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">le_subst</span> <span class="n" style="color: #333;">env</span><span class="p">),</span> <span class="n" style="color: #333;">errs</span><span class="p">))</span></span>
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2422
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2416
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<pre style="margin: 0;"> <span id="LC2416" class="line" lang="haskell"></span>
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2423
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<pre style="margin: 0;">-<span id="LC2423" class="line" lang="haskell"><span class="n" style="color: #333;">applySubstTy</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span></span>
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2424
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<pre style="margin: 0;">-<span id="LC2424" class="line" lang="haskell"><span class="n" style="color: #333;">applySubstTy</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span><span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">substTy</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="p">}</span></span>
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2425
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<pre style="margin: 0;">-<span id="LC2425" class="line" lang="haskell"></span>
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2426
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<pre style="margin: 0;">-<span id="LC2426" class="line" lang="haskell"><span class="n" style="color: #333;">applySubstCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InCoercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">OutCoercion</span></span>
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2427
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<td class="diff-line-num new_line old" data-linenumber="2417" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC2427" class="line" lang="haskell"><span class="n" style="color: #333;">applySubstCo</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span><span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">substCo</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="p">}</span></span>
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2428
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<pre style="margin: 0;">-<span id="LC2428" class="line" lang="haskell"></span>
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2429
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2417
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<pre style="margin: 0;"> <span id="LC2417" class="line" lang="haskell"><span class="n" style="color: #333;">lookupIdInScope</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">Id</span></span>
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2430
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2418
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<pre style="margin: 0;"> <span id="LC2418" class="line" lang="haskell"><span class="n" style="color: #333;">lookupIdInScope</span> <span class="n" style="color: #333;">id_occ</span></span>
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2431
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2419
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<pre style="margin: 0;"> <span id="LC2419" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">in_scope_ids</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getInScopeIds</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2461" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2449" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2461,16 +2449,7 @@ lookupJoinId id</td>
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2461
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2449
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<pre style="margin: 0;"> <span id="LC2449" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">id'</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="n" style="color: #333;">isJoinId_maybe</span> <span class="n" style="color: #333;">id'</span><span class="p">)</span></span>
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2462
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<td class="diff-line-num new_line" data-linenumber="2450" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2450
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<pre style="margin: 0;"> <span id="LC2450" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC2451" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2464" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyCoVarInScope</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVar</span></span>
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<pre style="margin: 0;">-<span id="LC2465" class="line" lang="haskell"><span class="n" style="color: #333;">lintTyCoVarInScope</span> <span class="n" style="color: #333;">var</span></span>
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2466
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<pre style="margin: 0;">-<span id="LC2466" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getTCvSubst</span></span>
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2467
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<pre style="margin: 0;">-<span id="LC2467" class="line" lang="haskell"> <span class="p">;</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">lookupInScope</span> <span class="p">(</span><span class="n" style="color: #333;">getTCvInScope</span> <span class="n" style="color: #333;">subst</span><span class="p">)</span> <span class="n" style="color: #333;">var</span> <span class="kr" style="font-weight: 600;">of</span></span>
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2468
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<pre style="margin: 0;">-<span id="LC2468" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">var'</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">var'</span></span>
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2469
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<pre style="margin: 0;">-<span id="LC2469" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">failWithL</span> <span class="o" style="font-weight: 600;">$</span></span>
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2470
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<pre style="margin: 0;">-<span id="LC2470" class="line" lang="haskell"> <span class="n" style="color: #333;">hang</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"The TyCo variable"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprBndr</span> <span class="kt" style="color: #458; font-weight: 600;">LetBind</span> <span class="n" style="color: #333;">var</span><span class="p">)</span></span>
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2471
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<pre style="margin: 0;">-<span id="LC2471" class="line" lang="haskell"> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"is out of scope"</span><span class="p">)</span> <span class="p">}</span></span>
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2472
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<pre style="margin: 0;">-<span id="LC2472" class="line" lang="haskell"></span>
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2473
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<pre style="margin: 0;">-<span id="LC2473" class="line" lang="haskell"><span class="n" style="color: #333;">ensureEqTys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">OutType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">MsgDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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2452
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<pre style="margin: 0;">+<span id="LC2452" class="line" lang="haskell"><span class="n" style="color: #333;">ensureEqTys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintedType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">MsgDoc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">LintM</span> <span class="nb" style="color: #0086b3;">()</span></span>
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<pre style="margin: 0;"> <span id="LC2453" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- check ty2 is subtype of ty1 (ie, has same structure but usage</span></span>
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<pre style="margin: 0;"> <span id="LC2454" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- annotations need only be consistent, not equal)</span></span>
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<pre style="margin: 0;"> <span id="LC2455" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Assumes ty1,ty2 are have already had the substitution applied</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2500,6 +2479,9 @@ dumpLoc :: LintLocInfo -> (SrcLoc, SDoc)</td>
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<pre style="margin: 0;"> <span id="LC2479" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">RhsOf</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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2501
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<pre style="margin: 0;"> <span id="LC2480" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">getSrcLoc</span> <span class="n" style="color: #333;">v</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In the RHS of"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pp_binders</span> <span class="p">[</span><span class="n" style="color: #333;">v</span><span class="p">])</span></span>
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<pre style="margin: 0;"> <span id="LC2481" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC2482" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">OccOf</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2483" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">getSrcLoc</span> <span class="n" style="color: #333;">v</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In an occurrence of"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pp_binder</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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2484
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<pre style="margin: 0;">+<span id="LC2484" class="line" lang="haskell"></span>
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2503
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2485
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<pre style="margin: 0;"> <span id="LC2485" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LambdaBodyOf</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>
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2504
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2486
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<pre style="margin: 0;"> <span id="LC2486" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">getSrcLoc</span> <span class="n" style="color: #333;">b</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In the body of lambda with binder"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pp_binder</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>
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2505
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2487
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<pre style="margin: 0;"> <span id="LC2487" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2516" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2534,8 +2516,6 @@ dumpLoc TopLevelBindings</td>
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2534
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2516
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<pre style="margin: 0;"> <span id="LC2516" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">noSrcLoc</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">empty</span><span class="p">)</span></span>
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2535
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<td class="diff-line-num new_line" data-linenumber="2517" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">
2517
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<pre style="margin: 0;"> <span id="LC2517" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InType</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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2536
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2518
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<pre style="margin: 0;"> <span id="LC2518" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">noSrcLoc</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In the type"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span><span class="p">))</span></span>
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2537
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<pre style="margin: 0;">-<span id="LC2537" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InKind</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">ki</span><span class="p">)</span></span>
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2538
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<td class="diff-line-num new_line old" data-linenumber="2519" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#f9d7dc">
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<pre style="margin: 0;">-<span id="LC2538" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">noSrcLoc</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In the kind of"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">parens</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">ki</span><span class="p">))</span></span>
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2539
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2519
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<pre style="margin: 0;"> <span id="LC2519" class="line" lang="haskell"><span class="n" style="color: #333;">dumpLoc</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InCo</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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2540
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2520
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<pre style="margin: 0;"> <span id="LC2520" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">noSrcLoc</span><span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"In the coercion"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">co</span><span class="p">))</span></span>
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2541
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2521
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<pre style="margin: 0;"> <span id="LC2521" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2780" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2760" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2780,7 +2760,7 @@ mkJoinBndrOccMismatchMsg bndr join_arity_bndr join_arity_occ</td>
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2780
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2760
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<pre style="margin: 0;"> <span id="LC2760" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Arity at binding site:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">join_arity_bndr</span></span>
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2781
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2761
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<pre style="margin: 0;"> <span id="LC2761" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Arity at occurrence: "</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">join_arity_occ</span> <span class="p">]</span></span>
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2782
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2762
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<pre style="margin: 0;"> <span id="LC2762" class="line" lang="haskell"></span>
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2783
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<pre style="margin: 0;">-<span id="LC2783" class="line" lang="haskell"><span class="n" style="color: #333;">mkBndrOccTypeMismatchMsg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">OutType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Out</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span></span>
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2763
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<pre style="margin: 0;">+<span id="LC2763" class="line" lang="haskell"><span class="n" style="color: #333;">mkBndrOccTypeMismatchMsg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Var</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">LintedType</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Linted</span>Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SDoc</span></span>
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2784
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<pre style="margin: 0;"> <span id="LC2764" class="line" lang="haskell"><span class="n" style="color: #333;">mkBndrOccTypeMismatchMsg</span> <span class="n" style="color: #333;">bndr</span> <span class="n" style="color: #333;">var</span> <span class="n" style="color: #333;">bndr_ty</span> <span class="n" style="color: #333;">var_ty</span></span>
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<pre style="margin: 0;"> <span id="LC2765" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Mismatch in type between binder and occurrence"</span></span>
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<pre style="margin: 0;"> <span id="LC2766" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Binder:"</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">bndr</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">dcolon</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">bndr_ty</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ae203c70bbaec128264fa4a25e4af3b1685843a#84c9d3ba34173297e7d7747e02caa2e004b164fc"><strong>compiler/GHC/Core/Type.hs</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2447,7 +2447,7 @@ normally it would make no sense to have</td>
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<pre style="margin: 0;"> <span id="LC2447" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> forall r. (ty :: K r)</span></span>
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<pre style="margin: 0;"> <span id="LC2448" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">because the kind of the forall would escape the binding</span></span>
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<pre style="margin: 0;"> <span id="LC2449" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">of 'r'. But in this case it's fine because (K r) exapands</span></span>
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<pre style="margin: 0;">-<span id="LC2450" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">to Type, so we explic<span class="idiff left right">lit</span>y /permit/ the type</span></span>
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<pre style="margin: 0;">+<span id="LC2450" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">to Type, so we explic<span class="idiff left right">itl</span>y /permit/ the type</span></span>
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<pre style="margin: 0;"> <span id="LC2451" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> forall r. T r</span></span>
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<pre style="margin: 0;"> <span id="LC2452" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2453" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">To accommodate such a type, in typeKind (forall a.ty) we use</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -2455,8 +2455,13 @@ occCheckExpand to expand any type synonyms in the kind of 'ty'</td>
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<pre style="margin: 0;"> <span id="LC2455" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">to eliminate 'a'. See kinding rule (FORALL) in</span></span>
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<pre style="margin: 0;"> <span id="LC2456" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [Kinding rules for types]</span></span>
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<pre style="margin: 0;"> <span id="LC2457" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2458" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">And in TcValidity.checkEscapingKind, we use also use</span></span>
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<pre style="margin: 0;">-<span id="LC2459" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">occCheckExpand, for the same reason.</span></span>
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<pre style="margin: 0;">+<span id="LC2458" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">See also</span></span>
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<pre style="margin: 0;">+<span id="LC2459" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> * TcUnify.occCheckExpand</span></span>
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<pre style="margin: 0;">+<span id="LC2460" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> * GHC.Core.Utils.coreAltsType</span></span>
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<pre style="margin: 0;">+<span id="LC2461" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;"> * TcValidity.checkEscapingKind</span></span>
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<pre style="margin: 0;">+<span id="LC2462" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">all of which grapple with with the same problem.</span></span>
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<pre style="margin: 0;">+<span id="LC2463" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC2464" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">See #14939.</span></span>
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<pre style="margin: 0;"> <span id="LC2465" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>
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<pre style="margin: 0;"> <span id="LC2466" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2467" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-----------------------------</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ae203c70bbaec128264fa4a25e4af3b1685843a#0e0c71e4cbf58a235b423d67f0a1f3f872c35138"><strong>testsuite/tests/indexed-types/should_compile/T17923.hs</strong></a>
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<pre style="margin: 0;">+<span id="LC1" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE DataKinds #-}</span></span>
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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE PolyKinds #-}</span></span>
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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE RankNTypes #-}</span></span>
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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE ScopedTypeVariables #-}</span></span>
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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeApplications #-}</span></span>
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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeFamilies #-}</span></span>
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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeOperators #-}</span></span>
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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# OPTIONS_GHC -Wall #-}</span></span>
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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">Bug</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Kind</span></span>
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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- type SingFunction2 f = forall t1 t2. Sing t1 -> Sing t2 -> Sing (f `Apply` t1 `Apply` t2)</span></span>
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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">SingFunction2</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">t1</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">t1</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">t2</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">t2</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="n" style="color: #333;">f</span> <span class="p">`</span><span class="kt" style="color: #458; font-weight: 600;">Apply</span><span class="p">`</span> <span class="n" style="color: #333;">t1</span> <span class="p">`</span><span class="kt" style="color: #458; font-weight: 600;">Apply</span><span class="p">`</span> <span class="n" style="color: #333;">t2</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell"><span class="n" style="color: #333;">singFun2</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">f</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">SingFunction2</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">f</span></span>
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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"><span class="n" style="color: #333;">singFun2</span> <span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span> <span class="p">(</span><span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">x</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>
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19
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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">TyFun</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>
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20
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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">~></span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyFun</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>
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21
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<pre style="margin: 0;">+<span id="LC21" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">infixr</span> <span class="mi" style="color: #099;">0</span> <span class="o" style="font-weight: 600;">~></span></span>
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22
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<pre style="margin: 0;">+<span id="LC22" class="line" lang="haskell"></span>
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23
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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Apply</span> <span class="p">(</span><span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">~></span> <span class="n" style="color: #333;">b</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">b</span></span>
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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">Sym4</span> <span class="n" style="color: #333;">a</span></span>
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25
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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">Sym3</span> <span class="n" style="color: #333;">a</span></span>
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26
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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Apply</span> <span class="kt" style="color: #458; font-weight: 600;">Sym3</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Sym4</span></span>
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<pre style="margin: 0;">+<span id="LC28" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC29" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">newtype</span> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span> <span class="p">(</span><span class="n" style="color: #333;">f</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k1</span> <span class="o" style="font-weight: 600;">~></span> <span class="n" style="color: #333;">k2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span></span>
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<pre style="margin: 0;">+<span id="LC30" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span> <span class="p">{</span> <span class="n" style="color: #333;">applySing</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">t</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Apply</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">t</span><span class="p">)</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC31" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span></span>
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32
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<pre style="margin: 0;">+<span id="LC32" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC33" class="line" lang="haskell"><span class="n" style="color: #333;">und</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell"><span class="n" style="color: #333;">und</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">undefined</span></span>
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<pre style="margin: 0;">+<span id="LC35" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">E</span></span>
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37
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<pre style="margin: 0;">+<span id="LC37" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">ShowCharSym0</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">E</span> <span class="o" style="font-weight: 600;">~></span> <span class="kt" style="color: #458; font-weight: 600;">E</span> <span class="o" style="font-weight: 600;">~></span> <span class="kt" style="color: #458; font-weight: 600;">E</span></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC39" class="line" lang="haskell"><span class="n" style="color: #333;">sShow_tuple</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SLambda</span> <span class="kt" style="color: #458; font-weight: 600;">Sym4</span></span>
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<pre style="margin: 0;">+<span id="LC40" class="line" lang="haskell"><span class="n" style="color: #333;">sShow_tuple</span></span>
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<pre style="margin: 0;">+<span id="LC41" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">applySing</span> <span class="p">(</span><span class="n" style="color: #333;">singFun2</span> <span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">Sym3</span> <span class="n" style="color: #333;">und</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">und</span> <span class="p">(</span><span class="n" style="color: #333;">singFun2</span> <span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">Sym3</span></span>
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<pre style="margin: 0;">+<span id="LC43" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">und</span> <span class="p">(</span><span class="n" style="color: #333;">applySing</span> <span class="p">(</span><span class="n" style="color: #333;">singFun2</span> <span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">Sym3</span> <span class="n" style="color: #333;">und</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC44" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">applySing</span> <span class="p">(</span><span class="n" style="color: #333;">singFun2</span> <span class="o" style="font-weight: 600;">@</span><span class="kt" style="color: #458; font-weight: 600;">ShowCharSym0</span> <span class="n" style="color: #333;">und</span><span class="p">)</span> <span class="n" style="color: #333;">und</span><span class="p">)))))</span></span></pre>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/8ae203c70bbaec128264fa4a25e4af3b1685843a#58b9bc2ffb1c7d7b545e6aada524a5d53266e95e"><strong>testsuite/tests/indexed-types/should_compile/all.T</strong></a>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -294,3 +294,4 @@ test('T16828', normal, compile, [''])</td>
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<pre style="margin: 0;"> <span id="LC294" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T17008b</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">[''])</span></span>
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<pre style="margin: 0;"> <span id="LC295" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T17056</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">[''])</span></span>
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<pre style="margin: 0;"> <span id="LC296" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T17405</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">multimod_compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">T17405c</span><span class="p">',</span> <span class="p">'</span><span class="s1" style="color: #d14;">-v0</span><span class="p">'])</span></span>
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<pre style="margin: 0;">+<span id="LC297" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T17923</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">[''])</span></span></pre>
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