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<h3>
Simon Peyton Jones pushed to branch wip/T8095-spj
at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>
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<h4>
Commits:
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<li>
<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2">16ef62d4</a></strong>
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<span>by Simon Peyton Jones</span>
<i>at 2020-08-04T20:06:59+01:00</i>
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<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Simplify TyCoFolder
This commit removes the 'env' part of TyCoFolder. A nice
simplification!
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<h4>6 changed files:</h4>
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<li class="file-stats">
<a href="#783e5dae6e86931f06700fc088fb7d48c8a07386">
compiler/GHC/Core/Coercion.hs
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<li class="file-stats">
<a href="#039e8f5676356ef05c90af828aae48aac7296e47">
compiler/GHC/Core/TyCo/FVs.hs
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<li class="file-stats">
<a href="#578c7c3857d66d963736ff6742f3433a0e8d01b7">
compiler/GHC/Core/TyCo/Rep.hs
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<li class="file-stats">
<a href="#89a2e0e1a3095c7a42b10f2819049908908080e8">
compiler/GHC/Core/Unify.hs
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<li class="file-stats">
<a href="#5461e7beeb7ae73d7c01f720cbaa3fa2c5333590">
compiler/GHC/Tc/Utils/TcType.hs
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<li class="file-stats">
<a href="#6a120b0673f8920127d8fffdaa16f01b90cc92d7">
compiler/GHC/Tc/Utils/Zonk.hs
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<h4>Changes:</h4>
<li id="783e5dae6e86931f06700fc088fb7d48c8a07386">
<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#783e5dae6e86931f06700fc088fb7d48c8a07386"><strong>compiler/GHC/Core/Coercion.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">@@ -2940,22 +2940,19 @@ simplifyArgsWorker orig_ki_binders orig_inner_ki orig_fvs</td>
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<pre style="margin: 0;"> <span id="LC2940" 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="LC2941" 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="LC2942" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2943" class="line" lang="haskell"><span class="n" style="color: #333;">bad_co_hole_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="nb" style="color: #0086b3;"><span class="idiff left">()</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </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;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;">-<span id="LC2944" class="line" lang="haskell"><span class="n" style="color: #333;">bad_co_hole_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="nb" style="color: #0086b3;"><span class="idiff left">()</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </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;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;">+<span id="LC2943" class="line" lang="haskell"><span class="n" style="color: #333;">bad_co_hole_ty</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;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;">+<span id="LC2944" class="line" lang="haskell"><span class="n" style="color: #333;">bad_co_hole_co</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;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;"> <span id="LC2945" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">bad_co_hole_ty</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">bad_co_hole_co</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC2946" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldTyCo</span> <span class="n" style="color: #333;">folder</span></span>
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<pre style="margin: 0;"> <span id="LC2947" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC2948" class="line" lang="haskell"> <span class="n" style="color: #333;">folder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="nb" style="color: #0086b3;"><span class="idiff left">()</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;">+<span id="LC2948" class="line" lang="haskell"> <span class="n" style="color: #333;">folder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;"> <span id="LC2949" class="line" lang="haskell"> <span class="n" style="color: #333;">folder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>
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<pre style="margin: 0;">-<span id="LC2950" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const<span class="idiff left right">2</span></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">False</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2951" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const<span class="idiff left right">2</span></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">False</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC2952" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">const</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">hole</span></span>
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<pre style="margin: 0;">-<span id="LC2953" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left right">const2</span></span></span>
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<pre style="margin: 0;">+<span id="LC2950" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">False</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2951" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">const</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">False</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC2952" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">hole</span></span>
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<pre style="margin: 0;">+<span id="LC2953" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">\</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">acc</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">acc</span></span></span>
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<pre style="margin: 0;"> <span id="LC2954" class="line" lang="haskell"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC2955" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC2956" class="line" lang="haskell"> <span class="n" style="color: #333;">const2</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="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">c</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="LC2957" class="line" lang="haskell"> <span class="n" style="color: #333;">const2</span> <span class="n" style="color: #333;">x</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">x</span></span>
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<pre style="margin: 0;">-<span id="LC2958" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2956" class="line" lang="haskell"> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionHole</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span></span>
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<pre style="margin: 0;"> <span id="LC2957" class="line" lang="haskell"> <span class="n" style="color: #333;">hole</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoercionHole</span> <span class="p">{</span> <span class="n" style="color: #333;">ch_blocker</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">YesBlockSubst</span> <span class="p">})</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
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<pre style="margin: 0;"> <span id="LC2958" class="line" lang="haskell"> <span class="n" style="color: #333;">hole</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;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Any</span> <span class="kt" style="color: #458; font-weight: 600;">False</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">@@ -2963,9 +2960,9 @@ bad_co_hole_co :: () -> Coercion -> Monoid.Any</td>
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<pre style="margin: 0;"> <span id="LC2960" class="line" lang="haskell"><span class="cd">-- | Is there a blocking coercion hole in this type? See</span></span>
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<pre style="margin: 0;"> <span id="LC2961" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- "GHC.Tc.Solver.Canonical" Note [Equalities with incompatible kinds]</span></span>
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<pre style="margin: 0;"> <span id="LC2962" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHole</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;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC2966" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHole</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAny</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">bad_co_hole_ty</span><span class="idiff left"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span>
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<pre style="margin: 0;">+<span id="LC2963" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHole</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAny</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">bad_co_hole_ty</span></span>
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<pre style="margin: 0;"> <span id="LC2964" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC2965" class="line" lang="haskell"><span class="cd">-- | Is there a blocking coercion hole in this coercion? See</span></span>
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<pre style="margin: 0;"> <span id="LC2966" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- GHC.Tc.Solver.Canonical Note [Equalities with incompatible kinds]</span></span>
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<pre style="margin: 0;"> <span id="LC2967" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHoleCo</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;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC2971" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHoleCo</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAny</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">bad_co_hole_co</span><span class="idiff left"> </span><span class="nb" style="color: #0086b3;"><span class="idiff right">()</span></span></span></pre>
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<pre style="margin: 0;">+<span id="LC2968" class="line" lang="haskell"><span class="n" style="color: #333;">badCoercionHoleCo</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAny</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">bad_co_hole_co</span></span></pre>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#039e8f5676356ef05c90af828aae48aac7296e47"><strong>compiler/GHC/Core/TyCo/FVs.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 CPP #-}</span></span>
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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 CPP<span class="idiff left right">, PatternSynonyms</span> #-}</span></span>
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<pre style="margin: 0;"> <span id="LC2" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC3" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">GHC.Core.TyCo.FVs</span></span>
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<pre style="margin: 0;"> <span id="LC4" class="line" lang="haskell"> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">shallowTyCoVarsOfType</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">shallowTyCoVarsOfTypes</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">@@ -39,7 +39,7 @@ module GHC.Core.TyCo.FVs</td>
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<pre style="margin: 0;"> <span id="LC39" class="line" lang="haskell"> <span class="nf" style="color: #900; font-weight: 600;">closeOverKinds</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC40" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC41" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- * Raw materials</span></span>
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<pre style="margin: 0;">-<span id="LC42" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Endo</span></span><span class="p"><span class="idiff">(</span></span><span class="o" style="font-weight: 600;"><span class="idiff">..</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">TyCoFvFun</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">InScopeBndrs</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">empty</span>InScope</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">runTyCoVars</span></span>
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<pre style="margin: 0;">+<span id="LC42" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoAcc</span></span><span class="p"><span class="idiff">(</span></span><span class="o" style="font-weight: 600;"><span class="idiff">..</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">InScopeBndrs</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">emptyInScope</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">extend</span>InScope</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">runTyCoVars</span></span>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="haskell"> <span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="o" style="font-weight: 600;">#</span><span class="n" style="color: #333;">include</span> <span class="s" style="color: #d14;">"HsVersions.h"</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">@@ -48,7 +48,6 @@ import GHC.Prelude</td>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="err" style="color: #a61717; background-color: #e3d2d2;">{-#</span> <span class="nn" style="color: #555;">SOURCE</span> <span class="o" style="font-weight: 600;">#-</span><span class="p">}</span> <span class="kt" style="color: #458; font-weight: 600;">GHC</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Core</span><span class="o" style="font-weight: 600;">.</span><span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="p">(</span><span class="n" style="color: #333;">coreView</span><span class="p">,</span> <span class="n" style="color: #333;">partitionInvisibleTypes</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC50" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC51" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Monoid</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">DM</span> <span class="p">(</span> <span class="kt" style="color: #458; font-weight: 600;">Endo</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;">All</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">)</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC51" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Core.TyCo.Rep</span></span>
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<pre style="margin: 0;"> <span id="LC52" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Core.TyCon</span></span>
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<pre style="margin: 0;"> <span id="LC53" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Var</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">@@ -59,7 +58,8 @@ import GHC.Types.Var.Set</td>
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<pre style="margin: 0;"> <span id="LC58" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Types.Var.Env</span></span>
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<pre style="margin: 0;"> <span id="LC59" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Utils.Misc</span></span>
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<pre style="margin: 0;"> <span id="LC60" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Utils.Panic</span></span>
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<pre style="margin: 0;">-<span id="LC62" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC61" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Semigroup</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">Semigroup</span></span>
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<pre style="margin: 0;">+<span id="LC62" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Exts</span><span class="p">(</span> <span class="n" style="color: #333;">oneShot</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC63" 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="LC64" 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="LC65" 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">@@ -264,14 +264,54 @@ TL;DR: check this regularly!</td>
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<pre style="margin: 0;"> <span id="LC264" 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="LC265" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC266" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC267" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">s</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</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="kt" style="color: #458; font-weight: 600;">Endo</span> <span class="n" style="color: #333;">s</span></span>
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<pre style="margin: 0;">+<span id="LC267" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">newtype</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA'</span> <span class="p">{</span> <span class="n" style="color: #333;">runTCA</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span> <span class="p">}</span></span>
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<pre style="margin: 0;">+<span id="LC268" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC269" class="line" lang="haskell"><span class="n" style="color: #333;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">acc</span><span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC270" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# COMPLETE TCA #-}</span></span>
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<pre style="margin: 0;">+<span id="LC271" class="line" lang="haskell"><span class="n" style="color: #333;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</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;">TCA'</span> <span class="n" style="color: #333;">f</span></span>
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<pre style="margin: 0;">+<span id="LC272" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC273" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">TCA</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;">TCA'</span> <span class="p">(</span><span class="n" style="color: #333;">oneShot</span> <span class="n" style="color: #333;">f</span><span class="p">)</span></span>
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274
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<pre style="margin: 0;">+<span id="LC274" class="line" lang="haskell"></span>
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275
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<pre style="margin: 0;">+<span id="LC275" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Semigroup</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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276
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<pre style="margin: 0;">+<span id="LC276" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">f1</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;">TCA</span> <span class="n" style="color: #333;">f2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">f2</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="n" style="color: #333;">f1</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span><span class="p">))</span></span>
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277
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<pre style="margin: 0;">+<span id="LC277" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE (<>) #-}</span></span>
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278
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<pre style="margin: 0;">+<span id="LC278" class="line" lang="haskell"></span>
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279
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<pre style="margin: 0;">+<span id="LC279" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC280" class="line" lang="haskell"> <span class="n" style="color: #333;">mempty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span><span class="p">)</span></span>
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281
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<pre style="margin: 0;">+<span id="LC281" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE mempty #-}</span></span>
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<pre style="margin: 0;">+<span id="LC282" class="line" lang="haskell"> <span class="n" style="color: #333;">mappend</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Semigroup</span><span class="o" style="font-weight: 600;">.<></span><span class="p">)</span></span>
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283
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<pre style="margin: 0;">+<span id="LC283" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE mappend #-}</span></span>
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<pre style="margin: 0;"> <span id="LC284" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC285" class="line" lang="haskell"><span class="n" style="color: #333;">emptyInScope</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</span></span>
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270
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<pre style="margin: 0;"> <span id="LC286" class="line" lang="haskell"><span class="n" style="color: #333;">emptyInScope</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">emptyVarSet</span></span>
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271
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287
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<pre style="margin: 0;"> <span id="LC287" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC272" class="line" lang="haskell"><span class="n" style="color: #333;">runTyCoVars</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="n" style="color: #333;">a</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</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="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC288" class="line" lang="haskell"><span class="n" style="color: #333;">addTyCoVar</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC289" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Add a variable tcv, and the extras, to the free vars unless</span></span>
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290
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<pre style="margin: 0;">+<span id="LC290" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- tcv is in the in-scope</span></span>
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<pre style="margin: 0;">+<span id="LC291" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- or is already in the in-scope set-</span></span>
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<pre style="margin: 0;">+<span id="LC292" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- The 'extras' start from an empty in-scope set;</span></span>
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<pre style="margin: 0;">+<span id="LC293" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- see Note [Closing over free variable kinds]</span></span>
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<pre style="margin: 0;">+<span id="LC294" class="line" lang="haskell"><span class="n" style="color: #333;">addTyCoVar</span> <span class="n" style="color: #333;">tcv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">add_extras</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">add_it</span></span>
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295
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<pre style="margin: 0;">+<span id="LC295" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC296" class="line" lang="haskell"> <span class="n" style="color: #333;">add_it</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC297" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</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;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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298
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<pre style="margin: 0;">+<span id="LC298" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</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;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC299" 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;">add_extras</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">(</span><span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC300" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC301" class="line" lang="haskell"><span class="n" style="color: #333;">extendInScope</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;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC302" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Gather the argument free vars in an empty in-scope set</span></span>
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<pre style="margin: 0;">+<span id="LC303" class="line" lang="haskell"><span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">f</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="n" style="color: #333;">is</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span></span>
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304
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<pre style="margin: 0;">+<span id="LC304" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC305" class="line" lang="haskell"><span class="n" style="color: #333;">whenNotInScope</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;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="n" style="color: #333;">acc</span></span>
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306
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<pre style="margin: 0;">+<span id="LC306" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- If tcv is not in the in-scope set, compute</span></span>
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307
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<pre style="margin: 0;">+<span id="LC307" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- the 'extras' in an empty in-scope set</span></span>
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<pre style="margin: 0;">+<span id="LC308" class="line" lang="haskell"><span class="n" style="color: #333;">whenNotInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">f</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">if</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;">is</span></span>
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<pre style="margin: 0;">+<span id="LC309" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">then</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC310" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">else</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC311" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC312" class="line" lang="haskell"><span class="n" style="color: #333;">runTyCoVars</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</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="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC313" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE runTyCoVars #-}</span></span>
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<pre style="margin: 0;">-<span id="LC274" class="line" lang="haskell"><span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">f</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;">x</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">appEndo</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">f</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyInScope</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="p"><span class="idiff right">)</span></span> <span class="n" style="color: #333;">emptyVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC314" class="line" lang="haskell"><span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">f</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;">x</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;"><span class="idiff left">runTCA</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">f</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">x</span></span><span class="p"><span class="idiff">)</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">emptyInScope</span></span> <span class="n" style="color: #333;">emptyVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC315" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- It's very important that the \x is to the right of the '=', so</span></span>
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<pre style="margin: 0;"> <span id="LC316" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- runTyCoVars has arity 1. It is often applied to just one arg e.g.</span></span>
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<pre style="margin: 0;"> <span id="LC317" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- tyCoVarsOfType = runTyCoVars deep_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">@@ -292,9 +332,9 @@ runTyCoVars f = \x -> appEndo (f emptyInScope x) emptyVarSet</td>
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<pre style="margin: 0;"> <span id="LC332" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC333" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Free variables of Coercions]</span></span>
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<pre style="margin: 0;"> <span id="LC334" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC295" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfType</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC296" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfTypes</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC297" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfCo</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC335" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfType</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="idiff left right"> </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC336" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfTypes</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="idiff left right"> </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC337" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="idiff left right"> </span><span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC338" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfCos</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC339" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC340" class="line" lang="haskell"><span class="n" style="color: #333;">tyCoVarsOfType</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">deep_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">@@ -305,27 +345,21 @@ tyCoVarsOfCos = runTyCoVars deep_cos</td>
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<pre style="margin: 0;"> <span id="LC345" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Alternative for tyCoVarsOfType</span></span>
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<pre style="margin: 0;"> <span id="LC346" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- tyCoVarsOfType ty = closeOverKinds (shallowTyCoVarsOfType ty)</span></span>
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<pre style="margin: 0;"> <span id="LC347" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC308" class="line" lang="haskell"><span class="n" style="color: #333;">deep_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">CoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Type</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC309" class="line" lang="haskell"><span class="n" style="color: #333;">deep_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</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">Type</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC310" class="line" lang="haskell"><span class="n" style="color: #333;">deep_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Coercion</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC311" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cos</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</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">Coercion</span></span><span class="p"><span class="idiff right">]</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC348" class="line" lang="haskell"><span class="n" style="color: #333;">deep_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">pe</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC349" class="line" lang="haskell"><span class="n" style="color: #333;">deep_tys</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">Type</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 right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC350" class="line" lang="haskell"><span class="n" style="color: #333;">deep_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Coercion</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC351" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cos</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">Coercion</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 right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC352" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">deep_ty</span><span class="p">,</span> <span class="n" style="color: #333;">deep_tys</span><span class="p">,</span> <span class="n" style="color: #333;">deep_co</span><span class="p">,</span> <span class="n" style="color: #333;">deep_cos</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldTyCo</span> <span class="n" style="color: #333;">deepTcvFolder</span></span>
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<pre style="margin: 0;"> <span id="LC353" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC314" class="line" lang="haskell"><span class="n" style="color: #333;">deepTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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 right">Endo</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC354" class="line" lang="haskell"><span class="n" style="color: #333;">deepTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC355" class="line" lang="haskell"><span class="n" style="color: #333;">deepTcvFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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<pre style="margin: 0;"> <span id="LC356" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span></span>
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<pre style="margin: 0;"> <span id="LC357" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC358" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC319" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Endo</span> <span class="n" style="color: #333;">do_it</span></span>
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<pre style="margin: 0;">-<span id="LC320" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC321" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC322" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC323" 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;">appEndo</span> <span class="p">(</span><span class="n" style="color: #333;">deep_ty</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">v</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC324" class="line" lang="haskell"> <span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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<pre style="margin: 0;">-<span id="LC325" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- emptyInScope: see Note [Closing over free variable kinds]</span></span>
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<pre style="margin: 0;">-<span id="LC326" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC327" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span></span>
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<pre style="margin: 0;">-<span id="LC328" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC359" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addTyCoVar</span> <span class="n" style="color: #333;">v</span> <span class="p">(</span><span class="n" style="color: #333;">deep_ty</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">v</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC360" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC361" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">_vis</span> <span class="n" style="color: #333;">fvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">fvs</span></span>
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<pre style="margin: 0;">+<span id="LC362" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC363" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [CoercionHoles and coercion free variables]</span></span>
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<pre style="margin: 0;"> <span id="LC364" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- in GHC.Core.TyCo.Rep</span></span>
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<pre style="margin: 0;"> <span id="LC365" 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">@@ -337,18 +371,16 @@ deepTcvFolder = TyCoFolder { tcf_view = noView</td>
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<pre style="margin: 0;"> <span id="LC371" 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="LC372" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC373" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC340" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfType</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC374" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [Free variables of types]</span></span>
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<pre style="margin: 0;">-<span id="LC342" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfType</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_ty</span></span>
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<pre style="margin: 0;">+<span id="LC375" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfType</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC376" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfTypes</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC377" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCo</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC378" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCos</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC379" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC344" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfType<span class="idiff left">s</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">Type</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 right">TyCoVarSet</span></span></span>
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<pre style="margin: 0;">+<span id="LC380" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfType</span><span class="idiff left"> </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">runTyCoVars</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">shallow_ty</span></span></span>
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<pre style="margin: 0;"> <span id="LC381" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfTypes</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_tys</span></span>
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<pre style="margin: 0;">-<span id="LC346" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC347" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCo</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;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC348" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCo</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_co</span></span>
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<pre style="margin: 0;">-<span id="LC349" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC350" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCos</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC351" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCos</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_cos</span></span>
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<pre style="margin: 0;">+<span id="LC382" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCo</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_co</span></span>
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<pre style="margin: 0;">+<span id="LC383" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTyCoVarsOfCos</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">shallow_cos</span></span>
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384
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<pre style="margin: 0;"> <span id="LC384" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC385" class="line" lang="haskell"><span class="cd">-- | Returns free variables of types, including kind variables as</span></span>
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<pre style="margin: 0;"> <span id="LC386" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- a non-deterministic set. For type synonyms it does /not/ expand the</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">@@ -364,25 +396,21 @@ shallowTyCoVarsOfCoVarEnv cos = shallowTyCoVarsOfCos (nonDetEltsUFM cos)</td>
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396
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<pre style="margin: 0;"> <span id="LC396" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- It's OK to use nonDetEltsUFM here because we immediately</span></span>
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397
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<pre style="margin: 0;"> <span id="LC397" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- forget the ordering by returning a set</span></span>
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366
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398
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<pre style="margin: 0;"> <span id="LC398" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC367" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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368
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<pre style="margin: 0;">-<span id="LC368" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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369
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<pre style="margin: 0;">-<span id="LC369" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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370
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<pre style="margin: 0;">-<span id="LC370" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_cos</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC399" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_ty</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC400" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_tys</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC401" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_co</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC402" class="line" lang="haskell"><span class="n" style="color: #333;">shallow_cos</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC403" class="line" lang="haskell"></span>
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404
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<pre style="margin: 0;"> <span id="LC404" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">shallow_ty</span><span class="p">,</span> <span class="n" style="color: #333;">shallow_tys</span><span class="p">,</span> <span class="n" style="color: #333;">shallow_co</span><span class="p">,</span> <span class="n" style="color: #333;">shallow_cos</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldTyCo</span> <span class="n" style="color: #333;">shallowTcvFolder</span></span>
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372
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<pre style="margin: 0;"> <span id="LC405" class="line" lang="haskell"></span>
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373
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<pre style="margin: 0;">-<span id="LC373" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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 right">Endo</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC406" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC407" class="line" lang="haskell"><span class="n" style="color: #333;">shallowTcvFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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<pre style="margin: 0;"> <span id="LC408" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span></span>
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<pre style="margin: 0;"> <span id="LC409" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC410" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC378" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Endo</span> <span class="n" style="color: #333;">do_it</span></span>
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379
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<pre style="margin: 0;">-<span id="LC379" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC380" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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381
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<pre style="margin: 0;">-<span id="LC381" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC382" 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;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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<pre style="margin: 0;">-<span id="LC383" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC384" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span></span>
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385
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<pre style="margin: 0;">-<span id="LC385" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span> <span class="c1" style="color: #998; font-style: italic;">-- Ignore coercion holes</span></span>
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<pre style="margin: 0;">+<span id="LC411" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span> <span class="c1" style="color: #998; font-style: italic;">-- Ignore coercion holes</span></span>
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<pre style="margin: 0;">+<span id="LC412" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addTyCoVar</span> <span class="n" style="color: #333;">v</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;">+<span id="LC413" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">_vis</span> <span class="n" style="color: #333;">fvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">fvs</span></span>
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<pre style="margin: 0;"> <span id="LC414" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC415" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC416" 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">@@ -412,61 +440,63 @@ coVarsOfTypes = runTyCoVars deep_cv_tys</td>
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<pre style="margin: 0;"> <span id="LC440" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCo</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">deep_cv_co</span></span>
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<pre style="margin: 0;"> <span id="LC441" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCos</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">deep_cv_cos</span></span>
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<pre style="margin: 0;"> <span id="LC442" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC415" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">CoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Type</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC416" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</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">Type</span></span><span class="p"><span class="idiff">]</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC417" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Coercion</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC418" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_cos</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</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">Coercion</span></span><span class="p"><span class="idiff right">]</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC443" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">pe</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC444" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_tys</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">Type</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 right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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445
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<pre style="margin: 0;">+<span id="LC445" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Coercion</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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446
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<pre style="margin: 0;">+<span id="LC446" class="line" lang="haskell"><span class="n" style="color: #333;">deep_cv_cos</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">Coercion</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 right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC447" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">deep_cv_ty</span><span class="p">,</span> <span class="n" style="color: #333;">deep_cv_tys</span><span class="p">,</span> <span class="n" style="color: #333;">deep_cv_co</span><span class="p">,</span> <span class="n" style="color: #333;">deep_cv_cos</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldTyCo</span> <span class="n" style="color: #333;">deepCoVarFolder</span></span>
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<pre style="margin: 0;"> <span id="LC448" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC421" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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">Endo</span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">CoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC449" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Ty</span>CoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC450" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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<pre style="margin: 0;"> <span id="LC451" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tyvar</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span></span>
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<pre style="margin: 0;"> <span id="LC452" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC453" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC426" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</span></span><span class="idiff right"> </span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;">+<span id="LC454" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;"> <span id="LC455" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- This do_tyvar means we won't see any CoVars in this</span></span>
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<pre style="margin: 0;"> <span id="LC456" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- TyVar's kind. This may be wrong; but it's the way it's</span></span>
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<pre style="margin: 0;"> <span id="LC457" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- always been. And its awkward to change, because</span></span>
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<pre style="margin: 0;"> <span id="LC458" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- the tyvar won't end up in the accumulator, so</span></span>
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<pre style="margin: 0;"> <span id="LC459" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- we'd look repeatedly. Blargh.</span></span>
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<pre style="margin: 0;"> <span id="LC460" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC433" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Endo</span> <span class="n" style="color: #333;">do_it</span></span>
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<pre style="margin: 0;">-<span id="LC434" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC435" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC436" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC437" 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;">appEndo</span> <span class="p">(</span><span class="n" style="color: #333;">deep_cv_ty</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">v</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC438" class="line" lang="haskell"> <span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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<pre style="margin: 0;">-<span id="LC439" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- emptyInScope: see Note [Closing over free variable kinds]</span></span>
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<pre style="margin: 0;">-<span id="LC440" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC441" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span></span>
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<pre style="margin: 0;">-<span id="LC442" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC461" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">cv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addTyCoVar</span> <span class="n" style="color: #333;">cv</span> <span class="p">(</span><span class="n" style="color: #333;">deep_ty</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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<pre style="margin: 0;">+<span id="LC462" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC463" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">_vis</span> <span class="n" style="color: #333;">fvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">fvs</span></span>
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<pre style="margin: 0;">+<span id="LC464" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</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;">-- See Note [CoercionHoles and coercion free variables]</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;">-- in GHC.Core.TyCo.Rep</span></span>
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<pre style="margin: 0;"> <span id="LC467" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC468" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">------- Same again, but for DCoVarSet ----------</span></span>
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<pre style="margin: 0;"> <span id="LC470" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoDSet</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;">DCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC449" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoDSet</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">appEndo</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">deep_dcv_co</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyInScope</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="n" style="color: #333;">emptyDVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC471" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoDSet</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">runTCA</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">deep_dcv_co</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">emptyVarSet</span></span> <span class="n" style="color: #333;">emptyDVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC472" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC451" class="line" lang="haskell"><span class="n" style="color: #333;">deep_dcv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">CoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Type</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC452" class="line" lang="haskell"><span class="n" style="color: #333;">deep_dcv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Coercion</span></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC473" class="line" lang="haskell"><span class="n" style="color: #333;">deep_dcv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">pe</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC474" class="line" lang="haskell"><span class="n" style="color: #333;">deep_dcv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Coercion</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</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;">deep_dcv_ty</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">deep_dcv_co</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;">foldTyCo</span> <span class="n" style="color: #333;">deepCoVarDSetFolder</span></span>
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<pre style="margin: 0;"> <span id="LC476" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC455" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarDSetFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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 right">Endo</span></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC477" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarDSetFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC478" class="line" lang="haskell"><span class="n" style="color: #333;">deepCoVarDSetFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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<pre style="margin: 0;"> <span id="LC479" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tyvar</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span></span>
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<pre style="margin: 0;"> <span id="LC480" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC481" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC460" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;">-<span id="LC461" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Endo</span> <span class="n" style="color: #333;">do_it</span></span>
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<pre style="margin: 0;">-<span id="LC462" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC463" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC464" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC465" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">-<span id="LC466" 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;">appEndo</span> <span class="p">(</span><span class="n" style="color: #333;">deep_dcv_ty</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="p">(</span><span class="n" style="color: #333;">varType</span> <span class="n" style="color: #333;">v</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">-<span id="LC467" class="line" lang="haskell"> <span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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<pre style="margin: 0;">-<span id="LC468" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendVarSet</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tcv</span></span>
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<pre style="margin: 0;">-<span id="LC469" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC482" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;">+<span id="LC483" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;">cv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addCoVarDSet</span> <span class="n" style="color: #333;">cv</span> <span class="p">(</span><span class="n" style="color: #333;">deep_dcv_ty</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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<pre style="margin: 0;">+<span id="LC484" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC485" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC486" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">_vis</span> <span class="n" style="color: #333;">fvs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tcv</span> <span class="n" style="color: #333;">fvs</span></span>
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<pre style="margin: 0;">+<span id="LC487" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span> <span class="p">(</span><span class="n" style="color: #333;">coHoleCoVar</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC488" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC489" class="line" lang="haskell"><span class="n" style="color: #333;">addCoVarDSet</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC490" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Add a variable to the free vars unless it is in the in-scope</span></span>
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<pre style="margin: 0;">+<span id="LC491" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- or is already in the in-scope set-</span></span>
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<pre style="margin: 0;">+<span id="LC492" class="line" lang="haskell"><span class="n" style="color: #333;">addCoVarDSet</span> <span class="n" style="color: #333;">cv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">add_extras</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCA</span> <span class="n" style="color: #333;">add_it</span></span>
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<pre style="margin: 0;">+<span id="LC493" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">+<span id="LC494" class="line" lang="haskell"> <span class="n" style="color: #333;">add_it</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</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;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC495" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">cv</span> <span class="p">`</span><span class="n" style="color: #333;">elemDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC496" 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;">add_extras</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="o" style="font-weight: 600;">$</span></span>
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<pre style="margin: 0;">+<span id="LC497" class="line" lang="haskell"> <span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">cv</span></span>
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<pre style="margin: 0;">+<span id="LC498" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- emptyInScopeSet: see Note [Closing over free variable kinds]</span></span>
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<pre style="margin: 0;">+<span id="LC499" class="line" lang="haskell"></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="cm" style="color: #998; font-style: italic;">{- *********************************************************************</span></span>
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<pre style="margin: 0;"> <span id="LC502" 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">@@ -481,7 +511,7 @@ closeOverKinds :: TyCoVarSet -> TyCoVarSet</td>
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<pre style="margin: 0;"> <span id="LC511" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- add the deep free variables of its kind</span></span>
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<pre style="margin: 0;"> <span id="LC512" class="line" lang="haskell"><span class="n" style="color: #333;">closeOverKinds</span> <span class="n" style="color: #333;">vs</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">nonDetStrictFoldVarSet</span> <span class="n" style="color: #333;">do_one</span> <span class="n" style="color: #333;">vs</span> <span class="n" style="color: #333;">vs</span></span>
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<pre style="margin: 0;"> <span id="LC513" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC484" class="line" lang="haskell"> <span class="n" style="color: #333;">do_one</span> <span class="n" style="color: #333;">v</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">appEndo</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">deep_ty</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyVarSet</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">varType</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">v</span></span><span class="p"><span class="idiff right">))</span></span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;">+<span id="LC514" class="line" lang="haskell"> <span class="n" style="color: #333;">do_one</span> <span class="n" style="color: #333;">v</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;"><span class="idiff left">runTCA</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">deep_ty</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">varType</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">v</span></span><span class="p"><span class="idiff">))</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">emptyInScope</span></span> <span class="n" style="color: #333;">acc</span></span>
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<pre style="margin: 0;"> <span id="LC515" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC516" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- --------------- Alternative version 1 (using FV) ------------</span></span>
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<pre style="margin: 0;"> <span id="LC517" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">closeOverKinds = fvVarSet . closeOverKindsFV . nonDetEltsUniqSet</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">@@ -876,29 +906,27 @@ injectiveVarsOfTypes look_under_tfs = mapUnionFV (injectiveVarsOfType look_under</td>
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<pre style="margin: 0;"> <span id="LC906" class="line" lang="haskell"><span class="n" style="color: #333;">invisibleVarsOfTypes</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;">VarSet</span></span>
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<pre style="margin: 0;"> <span id="LC907" class="line" lang="haskell"><span class="n" style="color: #333;">invisibleVarsOfTypes</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">invis_tys</span></span>
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<pre style="margin: 0;"> <span id="LC908" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC879" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC880" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</span> <span class="kr" style="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;">mempty</span></span>
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<pre style="margin: 0;">-<span id="LC881" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</span> <span class="n" style="color: #333;">is</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;">tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_tys</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">tys</span></span>
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<pre style="margin: 0;">-<span id="LC882" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC883" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFvFun</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC884" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty</span> <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;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">coreView</span> <span class="n" style="color: #333;">ty</span></span>
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<pre style="margin: 0;">-<span id="LC885" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty'</span></span>
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<pre style="margin: 0;">-<span id="LC886" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC887" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyVarTy</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC888" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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<pre style="margin: 0;">-<span id="LC889" 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;">deep_ty</span> <span class="n" style="color: #333;">emptyVarSet</span> <span class="p">(</span><span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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<pre style="margin: 0;">-<span id="LC890" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppTy</span> <span class="n" style="color: #333;">f</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;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">f</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">-<span id="LC891" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</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;">w</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">w</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty2</span></span>
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<pre style="margin: 0;">-<span id="LC892" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_tys</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">invisibles</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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<pre style="margin: 0;">-<span id="LC893" class="line" lang="haskell"> <span class="n" style="color: #333;">invis_tys</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">visibles</span></span>
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<pre style="margin: 0;">+<span id="LC909" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC910" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</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;">mempty</span></span>
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<pre style="margin: 0;">+<span id="LC911" class="line" lang="haskell"><span class="n" style="color: #333;">invis_tys</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;">tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_tys</span> <span class="n" style="color: #333;">tys</span></span>
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912
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<pre style="margin: 0;">+<span id="LC912" class="line" lang="haskell"></span>
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913
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<pre style="margin: 0;">+<span id="LC913" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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;">TyCoAcc</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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914
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<pre style="margin: 0;">+<span id="LC914" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty</span> <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;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">coreView</span> <span class="n" style="color: #333;">ty</span></span>
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915
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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="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty'</span></span>
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916
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<pre style="margin: 0;">+<span id="LC916" class="line" lang="haskell"></span>
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917
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<pre style="margin: 0;">+<span id="LC917" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyVarTy</span> <span class="n" style="color: #333;">v</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">whenNotInScope</span> <span class="n" style="color: #333;">v</span> <span class="o" style="font-weight: 600;">$</span></span>
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918
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<pre style="margin: 0;">+<span id="LC918" class="line" lang="haskell"> <span class="n" style="color: #333;">deep_ty</span> <span class="p">(</span><span class="n" style="color: #333;">tyVarKind</span> <span class="n" style="color: #333;">v</span><span class="p">)</span></span>
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919
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<pre style="margin: 0;">+<span id="LC919" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppTy</span> <span class="n" style="color: #333;">f</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;">invis_ty</span> <span class="n" style="color: #333;">f</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">a</span></span>
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920
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<pre style="margin: 0;">+<span id="LC920" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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;">w</span> <span class="n" style="color: #333;">ty1</span> <span class="n" style="color: #333;">ty2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">w</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty2</span></span>
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921
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<pre style="margin: 0;">+<span id="LC921" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_tys</span> <span class="n" style="color: #333;">invisibles</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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<pre style="margin: 0;">+<span id="LC922" class="line" lang="haskell"> <span class="n" style="color: #333;">invis_tys</span> <span class="n" style="color: #333;">visibles</span></span>
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<pre style="margin: 0;"> <span id="LC923" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span> <span class="p">(</span><span class="n" style="color: #333;">invisibles</span><span class="p">,</span> <span class="n" style="color: #333;">visibles</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">partitionInvisibleTypes</span> <span class="n" style="color: #333;">tc</span> <span class="n" style="color: #333;">tys</span></span>
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895
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<pre style="margin: 0;">-<span id="LC895" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllTy</span> <span class="n" style="color: #333;">tvb</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</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 class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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896
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<pre style="margin: 0;">-<span id="LC896" class="line" lang="haskell"> <span class="n" style="color: #333;">invis_ty</span> <span class="p">(</span><span class="n" style="color: #333;">is</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tv</span><span class="p">)</span> <span class="n" style="color: #333;">ty</span></span>
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897
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<pre style="margin: 0;">-<span id="LC897" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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898
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<pre style="margin: 0;">-<span id="LC898" class="line" lang="haskell"> <span class="n" style="color: #333;">tv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">binderVar</span> <span class="n" style="color: #333;">tvb</span></span>
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899
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<pre style="margin: 0;">-<span id="LC899" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">LitTy</span><span class="p">{}</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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900
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<pre style="margin: 0;">-<span id="LC900" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_co</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">ty</span></span>
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<pre style="margin: 0;">-<span id="LC901" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">is</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_co</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">co</span></span>
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924
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<pre style="margin: 0;">+<span id="LC924" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">invis_ty</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 class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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925
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<pre style="margin: 0;">+<span id="LC925" class="line" lang="haskell"> <span class="n" style="color: #333;">extendInScope</span> <span class="n" style="color: #333;">tv</span> <span class="p">(</span><span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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926
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<pre style="margin: 0;">+<span id="LC926" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LitTy</span> <span class="p">{})</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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927
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<pre style="margin: 0;">+<span id="LC927" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_co</span> <span class="n" style="color: #333;">co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">invis_ty</span> <span class="n" style="color: #333;">ty</span></span>
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928
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<pre style="margin: 0;">+<span id="LC928" class="line" lang="haskell"><span class="n" style="color: #333;">invis_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deep_co</span> <span class="n" style="color: #333;">co</span></span>
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929
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<pre style="margin: 0;">+<span id="LC929" class="line" lang="haskell"></span>
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930
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<pre style="margin: 0;"> <span id="LC930" class="line" lang="haskell"></span>
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903
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<pre style="margin: 0;"> <span id="LC931" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- *********************************************************************</span></span>
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932
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<pre style="margin: 0;"> <span id="LC932" 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">@@ -906,28 +934,31 @@ invis_ty is (CoercionTy co) = deep_co is co</td>
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934
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<pre style="margin: 0;"> <span id="LC934" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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907
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<pre style="margin: 0;"> <span id="LC935" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">********************************************************************* -}</span></span>
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936
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<pre style="margin: 0;"> <span id="LC936" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC909" class="line" lang="haskell"><span class="n" style="color: #333;">nfvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">DM</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">All</span></span></span>
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<pre style="margin: 0;">+<span id="LC937" class="line" lang="haskell"><span class="n" style="color: #333;">nfvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Bool</span></span><span class="p"><span class="idiff right">)</span></span></span>
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938
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<pre style="margin: 0;"> <span id="LC938" class="line" lang="haskell"><span class="n" style="color: #333;">nfvFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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939
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<pre style="margin: 0;"> <span id="LC939" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tcv</span></span>
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912
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940
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<pre style="margin: 0;"> <span id="LC940" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC941" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<pre style="margin: 0;">-<span id="LC914" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tv</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">All</span></span><span class="idiff"> </span><span class="p"><span class="idiff right">(</span></span><span class="n" style="color: #333;">tv</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span><span class="p">)</span></span>
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915
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<pre style="margin: 0;">-<span id="LC915" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</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">All</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">True</span></span> <span class="c1" style="color: #998; font-style: italic;">-- I'm unsure; probably never happens</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;">do_bndr</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tv</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><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">is</span></span><span class="idiff"> </span><span class="p"><span class="idiff">`</span></span><span class="n" style="color: #333;"><span class="idiff">extendVarSet</span></span><span class="p"><span class="idiff">`</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">tv</span></span></span>
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<pre style="margin: 0;">+<span id="LC942" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tcv</span> <span class="n" style="color: #333;"><span class="idiff left">tv</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">TCA</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">\</span></span><span class="n" style="color: #333;"><span class="idiff">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">acc</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">acc</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">&&</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">tv</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC943" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="kr" style="font-weight: 600;">_</span> <span class="idiff left"> </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">mempty</span></span> <span class="c1" style="color: #998; font-style: italic;">-- I'm unsure; probably never happens</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;">do_bndr</span> <span class="n" style="color: #333;"><span class="idiff left">tv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">_vis</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fvs</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">extendInScope</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">fvs</span></span></span>
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917
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945
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<pre style="margin: 0;"> <span id="LC945" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC918" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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">DM</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Al</span>l</span></span>
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<pre style="margin: 0;">-<span id="LC919" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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">Type</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">DM</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Al</span>l</span></span>
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920
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<pre style="margin: 0;">-<span id="LC920" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</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">Coercion</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">DM</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Al</span>l</span></span>
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946
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<pre style="margin: 0;">+<span id="LC946" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><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">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Boo</span>l</span></span>
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947
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<pre style="margin: 0;">+<span id="LC947" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_tys</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">Type</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">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Boo</span>l</span></span>
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948
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<pre style="margin: 0;">+<span id="LC948" class="line" lang="haskell"><span class="n" style="color: #333;">nfv_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Coercion</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">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Boo</span>l</span></span>
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949
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<pre style="margin: 0;"> <span id="LC949" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">nfv_ty</span><span class="p">,</span> <span class="n" style="color: #333;">nfv_tys</span><span class="p">,</span> <span class="n" style="color: #333;">nfv_co</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;">foldTyCo</span> <span class="n" style="color: #333;">nfvFolder</span></span>
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950
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<pre style="margin: 0;"> <span id="LC950" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC923" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">noFreeVarsOfType</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">Type</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC924" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">noFreeVarsOfType</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</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">DM</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">getAll</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">nfv_ty</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyInScope</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">ty</span></span><span class="p"><span class="idiff right">)</span></span></span>
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<pre style="margin: 0;">+<span id="LC951" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">runAll</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">TyCoAcc</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">Bool</span></span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">+<span id="LC952" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left">runAll</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">TCA</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">f</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">f</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">emptyInScope</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">True</span></span></span>
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<pre style="margin: 0;"> <span id="LC953" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC954" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfType</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;">Bool</span></span>
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<pre style="margin: 0;"> <span id="LC955" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfTypes</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;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC927" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfTypes</span> <span class="n" style="color: #333;">tys</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">DM</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAll</span> <span class="p">(</span><span class="n" style="color: #333;">nfv_tys</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC956" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfCo</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;">Bool</span></span>
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<pre style="margin: 0;">+<span id="LC957" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC958" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfType</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runAll</span> <span class="p">(</span><span class="n" style="color: #333;">nfv_ty</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC959" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfTypes</span> <span class="n" style="color: #333;">tys</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runAll</span> <span class="p">(</span><span class="n" style="color: #333;">nfv_tys</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC960" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfCo</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runAll</span> <span class="p">(</span><span class="n" style="color: #333;">nfv_co</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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961
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<pre style="margin: 0;"> <span id="LC961" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC929" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfCo</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;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC930" class="line" lang="haskell"><span class="n" style="color: #333;">noFreeVarsOfCo</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">DM</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">getAll</span> <span class="p">(</span><span class="n" style="color: #333;">nfv_co</span> <span class="n" style="color: #333;">emptyInScope</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC962" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC963" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC964" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- *********************************************************************</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#578c7c3857d66d963736ff6742f3433a0e8d01b7"><strong>compiler/GHC/Core/TyCo/Rep.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">@@ -1883,18 +1883,17 @@ TyCoFolder data constructor for deep_tcf as a loop breaker, so the</td>
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<pre style="margin: 0;"> <span id="LC1883" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">record selections still cancel. And eta expansion still happens too.</span></span>
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<pre style="margin: 0;"> <span id="LC1884" 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="LC1885" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1886" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC1886" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;"> <span id="LC1887" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span></span>
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<pre style="margin: 0;"> <span id="LC1888" class="line" lang="haskell"> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</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;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Optional "view" function</span></span>
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<pre style="margin: 0;"> <span id="LC1889" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- E.g. expand synonyms</span></span>
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<pre style="margin: 0;">-<span id="LC1890" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">TyVar</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span></span>
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1891
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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;">tcf_covar</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">CoVar</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="LC1892" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">CoercionHole</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="LC1890" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</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="n" style="color: #333;">a</span></span>
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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;">tcf_covar</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="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC1892" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">CoercionHole</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="LC1893" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ^ What to do with coercion holes.</span></span>
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<pre style="margin: 0;"> <span id="LC1894" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Coercion holes] in "GHC.Core.TyCo.Rep".</span></span>
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<pre style="margin: 0;"> <span id="LC1895" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1896" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">env</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;">ArgFlag</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">env</span></span>
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<pre style="margin: 0;">-<span id="LC1897" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- ^ The returned env is used in the extended scope</span></span>
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<pre style="margin: 0;">+<span id="LC1896" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</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;">ArgFlag</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;">a</span></span>
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<pre style="margin: 0;"> <span id="LC1897" class="line" lang="haskell"> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC1898" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1899" class="line" lang="haskell"><span class="n" style="color: #333;">noView</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;">Maybe</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="c1" style="color: #998; font-style: italic;">-- Simplest form of tcf_view</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">@@ -1902,11 +1901,11 @@ noView :: Type -> Maybe Type -- Simplest form of tcf_view</td>
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<pre style="margin: 0;"> <span id="LC1901" class="line" lang="haskell"><span class="n" style="color: #333;">noView</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;">Nothing</span></span>
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<pre style="margin: 0;"> <span id="LC1902" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC1903" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# INLINE foldTyCo #-}</span> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Specialising foldType]</span></span>
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<pre style="margin: 0;">-<span id="LC1905" class="line" lang="haskell"><span class="n" style="color: #333;">foldTyCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</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;">TyCoFolder</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">-<span id="LC1906" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">Type</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="LC1907" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </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="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">-<span id="LC1908" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">Coercion</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="LC1909" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;"><span class="idiff left">env</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1904" class="line" lang="haskell"><span class="n" style="color: #333;">foldTyCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</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;">TyCoFolder</span> <span class="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC1905" 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;">Type</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="LC1906" class="line" lang="haskell"> <span class="p">,</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="n" style="color: #333;">a</span></span>
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<pre style="margin: 0;">+<span id="LC1907" class="line" lang="haskell"> <span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</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="LC1908" class="line" lang="haskell"> <span class="p">,</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">a</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC1909" class="line" lang="haskell"><span class="n" style="color: #333;">foldTyCo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">view</span></span>
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<pre style="margin: 0;"> <span id="LC1910" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tyvar</span></span>
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<pre style="margin: 0;"> <span id="LC1911" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tycobinder</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">@@ -1914,61 +1913,58 @@ foldTyCo (TyCoFolder { tcf_view = view</td>
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<pre style="margin: 0;"> <span id="LC1913" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cohole</span> <span class="p">})</span></span>
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1915
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1914
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<pre style="margin: 0;"> <span id="LC1914" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="n" style="color: #333;">go_ty</span><span class="p">,</span> <span class="n" style="color: #333;">go_tys</span><span class="p">,</span> <span class="n" style="color: #333;">go_co</span><span class="p">,</span> <span class="n" style="color: #333;">go_cos</span><span class="p">)</span></span>
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1916
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1915
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<pre style="margin: 0;"> <span id="LC1915" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1917
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<pre style="margin: 0;">-<span id="LC1917" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty</span> <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;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">view</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty'</span></span>
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1918
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<pre style="margin: 0;">-<span id="LC1918" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tyvar</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">tv</span></span>
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1919
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<pre style="margin: 0;">-<span id="LC1919" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">t1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">t2</span></span>
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1920
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<pre style="margin: 0;">-<span id="LC1920" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LitTy</span> <span class="p">{})</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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1921
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<pre style="margin: 0;">-<span id="LC1921" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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1922
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<pre style="margin: 0;">-<span id="LC1922" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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1923
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<pre style="margin: 0;">-<span id="LC1923" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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;">w</span> <span class="n" style="color: #333;">arg</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;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">w</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">arg</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">res</span></span>
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1924
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<pre style="margin: 0;">-<span id="LC1924" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_tys</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">tys</span></span>
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1925
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<pre style="margin: 0;">-<span id="LC1925" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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;">inner</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1926" 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">
1926
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<pre style="margin: 0;">-<span id="LC1926" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">let</span> <span class="o" style="font-weight: 600;">!</span><span class="n" style="color: #333;">env'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tycobinder</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">vis</span> <span class="c1" style="color: #998; font-style: italic;">-- Avoid building a thunk here</span></span>
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1927
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<pre style="margin: 0;">-<span id="LC1927" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">in</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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 class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env'</span> <span class="n" style="color: #333;">inner</span></span>
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1916
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<pre style="margin: 0;">+<span id="LC1916" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty</span> <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;">ty'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">view</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty'</span></span>
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1917
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<pre style="margin: 0;">+<span id="LC1917" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tyvar</span> <span class="n" style="color: #333;">tv</span></span>
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1918
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<pre style="margin: 0;">+<span id="LC1918" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">t1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">t2</span></span>
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1919
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<pre style="margin: 0;">+<span id="LC1919" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LitTy</span> <span class="p">{})</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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1920
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<pre style="margin: 0;">+<span id="LC1920" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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1921
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<pre style="margin: 0;">+<span id="LC1921" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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1922
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<pre style="margin: 0;">+<span id="LC1922" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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;">w</span> <span class="n" style="color: #333;">arg</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;">go_ty</span> <span class="n" style="color: #333;">w</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">arg</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">res</span></span>
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1923
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<pre style="margin: 0;">+<span id="LC1923" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConApp</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_tys</span> <span class="n" style="color: #333;">tys</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1924" 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">
1924
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<pre style="margin: 0;">+<span id="LC1924" class="line" lang="haskell"> <span class="n" style="color: #333;">go_ty</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;">inner</span><span class="p">)</span></span>
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1925
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<pre style="margin: 0;">+<span id="LC1925" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</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 class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">tycobinder</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;">go_ty</span> <span class="n" style="color: #333;">inner</span><span class="p">)</span></span>
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1928
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1926
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<pre style="margin: 0;"> <span id="LC1926" class="line" lang="haskell"></span>
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1929
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1927
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<pre style="margin: 0;"> <span id="LC1927" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Explicit recursion becuase using foldr builds a local</span></span>
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1930
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<pre style="margin: 0;">-<span id="LC1930" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- loop (with <span class="idiff left right">env </span>free) and I'm not confident it'll be</span></span>
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1928
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<pre style="margin: 0;">+<span id="LC1928" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- loop (with free) and I'm not confident it'll be</span></span>
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1931
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1929
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<pre style="margin: 0;"> <span id="LC1929" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- lambda lifted in the end</span></span>
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1932
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<pre style="margin: 0;">-<span id="LC1932" class="line" lang="haskell"> <span class="n" style="color: #333;">go_tys</span> <span class="kr" style="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;">mempty</span></span>
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1933
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<pre style="margin: 0;">-<span id="LC1933" class="line" lang="haskell"> <span class="n" style="color: #333;">go_tys</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ts</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">t</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_tys</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ts</span></span>
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1934
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<pre style="margin: 0;">-<span id="LC1934" class="line" lang="haskell"></span>
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1935
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<pre style="margin: 0;">-<span id="LC1935" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cos</span> <span class="kr" style="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;">mempty</span></span>
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1936
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<pre style="margin: 0;">-<span id="LC1936" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="n" style="color: #333;">c</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">cs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cs</span></span>
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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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1938
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<pre style="margin: 0;">-<span id="LC1938" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty</span></span>
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1939
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<pre style="margin: 0;">-<span id="LC1939" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="kr" style="font-weight: 600;">_</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty</span></span>
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1940
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1940" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="kr" style="font-weight: 600;">_</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1941" 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">
1941
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1941" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConAppCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">args</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1942" 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">
1942
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1942" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppCo</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c2</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1943" 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">
1943
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1943" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">cw</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cw</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1944" 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">
1944
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1944" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</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="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c2</span></span>
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1946
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<pre style="margin: 0;">-<span id="LC1946" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">covar</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cv</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1947" 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">
1947
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<pre style="margin: 0;">-<span id="LC1947" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomInstCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">args</span></span>
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1948
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<pre style="margin: 0;">-<span id="LC1948" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HoleCo</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cohole</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">hole</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1949" 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">
1949
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1949" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnivCo</span> <span class="n" style="color: #333;">p</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_prov</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">p</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">t1</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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<pre style="margin: 0;">-<span id="LC1950" class="line" lang="haskell"> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">t2</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1951" 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">
1951
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<pre style="margin: 0;">-<span id="LC1951" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1952" 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">
1952
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1952" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TransCo</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">c2</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1953" 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">
1953
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1953" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomRuleCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cos</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1954" 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">
1954
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1954" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NthCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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1955
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<pre style="margin: 0;">-<span id="LC1955" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LRCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1956" 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">
1956
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<pre style="margin: 0;">-<span id="LC1956" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">arg</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1957" 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">
1957
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1957" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1958" 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">
1958
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<pre style="margin: 0;">-<span id="LC1958" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</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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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1959" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">tv</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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<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="1930" 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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">kind_co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">env</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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<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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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1961" class="line" lang="haskell"> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env'</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1962" 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">
1962
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<pre style="margin: 0;">-<span id="LC1962" 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="1963" 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">
1963
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<td class="diff-line-num new_line old" data-linenumber="1930" 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="LC1963" class="line" lang="haskell"> <span class="n" style="color: #333;">env'</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tycobinder</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">tv</span> <span class="kt" style="color: #458; font-weight: 600;">Inferred</span></span>
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1964
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<pre style="margin: 0;">-<span id="LC1964" class="line" lang="haskell"></span>
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<td class="diff-line-num old old_line" data-linenumber="1965" 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">
1965
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<pre style="margin: 0;">-<span id="LC1965" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ZapCoProv</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cvs</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="n" style="color: #333;">dVarSetElems</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1966" 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">
1966
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<pre style="margin: 0;">-<span id="LC1966" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhantomProv</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</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;">go_prov</span> <span class="n" style="color: #333;">env</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ProofIrrelProv</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1968" 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">
1968
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<pre style="margin: 0;">-<span id="LC1968" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="kr" 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;">mempty</span></span>
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<td class="diff-line-num old old_line" data-linenumber="1969" 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">
1969
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<pre style="margin: 0;">-<span id="LC1969" class="line" lang="haskell"></span>
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<td class="diff-line-num old old_line" data-linenumber="1970" 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">
1970
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<pre style="margin: 0;">-<span id="LC1970" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cvs</span> <span class="kr" style="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;">mempty</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="n" style="color: #333;">go_cvs</span> <span class="n" style="color: #333;">env</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;">cvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">covar</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cv</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_cvs</span> <span class="n" style="color: #333;">env</span> <span class="n" style="color: #333;">cvs</span></span>
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<td class="diff-line-num new old_line" data-linenumber="1972" 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="1930" 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">
1930
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<pre style="margin: 0;">+<span id="LC1930" class="line" lang="haskell"> <span class="n" style="color: #333;">go_tys</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;">mempty</span></span>
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1931
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<pre style="margin: 0;">+<span id="LC1931" class="line" lang="haskell"> <span class="n" style="color: #333;">go_tys</span> <span class="p">(</span><span class="n" style="color: #333;">t</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ts</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">t</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_tys</span> <span class="n" style="color: #333;">ts</span></span>
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1932
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<pre style="margin: 0;">+<span id="LC1932" class="line" lang="haskell"></span>
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1933
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<pre style="margin: 0;">+<span id="LC1933" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cos</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;">mempty</span></span>
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1934
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<pre style="margin: 0;">+<span id="LC1934" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cos</span> <span class="p">(</span><span class="n" style="color: #333;">c</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">cs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">cs</span></span>
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1935
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<pre style="margin: 0;">+<span id="LC1935" class="line" lang="haskell"></span>
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1936
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<pre style="margin: 0;">+<span id="LC1936" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty</span></span>
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1937
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<pre style="margin: 0;">+<span id="LC1937" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="kr" style="font-weight: 600;">_</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty</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;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">GRefl</span> <span class="kr" style="font-weight: 600;">_</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">ty</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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1939
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<pre style="margin: 0;">+<span id="LC1939" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyConAppCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">args</span></span>
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1940
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<pre style="margin: 0;">+<span id="LC1940" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AppCo</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c2</span></span>
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1941
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<pre style="margin: 0;">+<span id="LC1941" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">cw</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">cw</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span></span>
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1942
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<pre style="margin: 0;">+<span id="LC1942" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</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="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c2</span></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;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">covar</span> <span class="n" style="color: #333;">cv</span></span>
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1945
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<pre style="margin: 0;">+<span id="LC1945" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomInstCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">args</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">args</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1946" 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">
1946
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<pre style="margin: 0;">+<span id="LC1946" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">HoleCo</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">cohole</span> <span class="n" style="color: #333;">hole</span></span>
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1947
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<pre style="margin: 0;">+<span id="LC1947" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnivCo</span> <span class="n" style="color: #333;">p</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_prov</span> <span class="n" style="color: #333;">p</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">t1</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;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</span> <span class="n" style="color: #333;">t2</span></span>
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1949
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<pre style="margin: 0;">+<span id="LC1949" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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1950
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<pre style="margin: 0;">+<span id="LC1950" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TransCo</span> <span class="n" style="color: #333;">c1</span> <span class="n" style="color: #333;">c2</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c1</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">c2</span></span>
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<td class="diff-line-num new new_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">
1951
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<pre style="margin: 0;">+<span id="LC1951" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">AxiomRuleCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cos</span> <span class="n" style="color: #333;">cos</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1952" 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">
1952
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<pre style="margin: 0;">+<span id="LC1952" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">NthCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1953" 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">
1953
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<pre style="margin: 0;">+<span id="LC1953" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">LRCo</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</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="n" style="color: #333;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">arg</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1955" 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">
1955
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<pre style="margin: 0;">+<span id="LC1955" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1956" 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">
1956
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<pre style="margin: 0;">+<span id="LC1956" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</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 class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1957" 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">
1957
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<pre style="margin: 0;">+<span id="LC1957" class="line" lang="haskell"> <span class="n" style="color: #333;">go_co</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ForAllCo</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">kind_co</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1958" 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">
1958
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<pre style="margin: 0;">+<span id="LC1958" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">kind_co</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_ty</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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<td class="diff-line-num new new_line" data-linenumber="1959" 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">
1959
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<pre style="margin: 0;">+<span id="LC1959" class="line" lang="haskell"> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">tycobinder</span> <span class="n" style="color: #333;">tv</span> <span class="kt" style="color: #458; font-weight: 600;">Inferred</span> <span class="p">(</span><span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1960" 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">
1960
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<pre style="margin: 0;">+<span id="LC1960" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1961" 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">
1961
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<pre style="margin: 0;">+<span id="LC1961" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ZapCoProv</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_cvs</span> <span class="p">(</span><span class="n" style="color: #333;">dVarSetElems</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new new_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">
1962
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<pre style="margin: 0;">+<span id="LC1962" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PhantomProv</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
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<td class="diff-line-num new new_line" data-linenumber="1963" 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">
1963
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<pre style="margin: 0;">+<span id="LC1963" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ProofIrrelProv</span> <span class="n" style="color: #333;">co</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">go_co</span> <span class="n" style="color: #333;">co</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1964" 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">
1964
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<pre style="margin: 0;">+<span id="LC1964" class="line" lang="haskell"> <span class="n" style="color: #333;">go_prov</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;">mempty</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="1972" 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="1965" 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">
1965
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<pre style="margin: 0;">+<span id="LC1965" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1966" 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">
1966
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<pre style="margin: 0;">+<span id="LC1966" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cvs</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;">mempty</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="1967" 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">
1967
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<pre style="margin: 0;">+<span id="LC1967" class="line" lang="haskell"> <span class="n" style="color: #333;">go_cvs</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;">cvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">covar</span> <span class="n" style="color: #333;">cv</span> <span class="p">`</span><span class="n" style="color: #333;">mappend</span><span class="p">`</span> <span class="n" style="color: #333;">go_cvs</span> <span class="n" style="color: #333;">cvs</span></span>
</pre>
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1968
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<pre style="margin: 0;"> <span id="LC1968" class="line" lang="haskell"></span>
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1973
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1969
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<pre style="margin: 0;"> <span id="LC1969" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- *********************************************************************</span></span>
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1974
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1970
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<pre style="margin: 0;"> <span id="LC1970" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">* *</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#89a2e0e1a3095c7a42b10f2819049908908080e8"><strong>compiler/GHC/Core/Unify.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">@@ -1316,6 +1316,7 @@ newtype UM a</td>
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1316
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<pre style="margin: 0;"> <span id="LC1316" class="line" lang="haskell"></span>
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1317
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1317
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<pre style="margin: 0;"> <span id="LC1317" class="line" lang="haskell"><span class="n" style="color: #333;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">UM</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UMState</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">UnifyResultM</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UMState</span><span class="p">,</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;">UM</span> <span class="n" style="color: #333;">a</span></span>
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1318
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1318
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<pre style="margin: 0;"> <span id="LC1318" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See Note [The one-shot state monad trick]</span></span>
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1319
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<pre style="margin: 0;">+<span id="LC1319" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# COMPLETE UM #-}</span></span>
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1319
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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;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">UM</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;"><-</span> <span class="kt" style="color: #458; font-weight: 600;">UM'</span> <span class="n" style="color: #333;">m</span></span>
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1320
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1321
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<pre style="margin: 0;"> <span id="LC1321" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1321
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1322
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<pre style="margin: 0;"> <span id="LC1322" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">UM</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">UM'</span> <span class="p">(</span><span class="n" style="color: #333;">oneShot</span> <span class="n" style="color: #333;">m</span><span class="p">)</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#5461e7beeb7ae73d7c01f720cbaa3fa2c5333590"><strong>compiler/GHC/Tc/Utils/TcType.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">@@ -937,11 +937,11 @@ exactTyCoVarsOfTypes :: [Type] -> TyCoVarSet</td>
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<pre style="margin: 0;"> <span id="LC937" class="line" lang="haskell"><span class="n" style="color: #333;">exactTyCoVarsOfType</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">exact_ty</span></span>
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938
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<pre style="margin: 0;"> <span id="LC938" class="line" lang="haskell"><span class="n" style="color: #333;">exactTyCoVarsOfTypes</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">runTyCoVars</span> <span class="n" style="color: #333;">exact_tys</span></span>
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939
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<pre style="margin: 0;"> <span id="LC939" class="line" lang="haskell"></span>
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940
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<pre style="margin: 0;">-<span id="LC940" class="line" lang="haskell"><span class="n" style="color: #333;">exact_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">CoFvFun</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">Type</span></span><span class="idiff right"> </span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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941
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<pre style="margin: 0;">-<span id="LC941" class="line" lang="haskell"><span class="n" style="color: #333;">exact_tys</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoFvFun</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">Type</span></span><span class="p"><span class="idiff right">]</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC940" class="line" lang="haskell"><span class="n" style="color: #333;">exact_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Ty<span class="idiff left">pe</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">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC941" class="line" lang="haskell"><span class="n" style="color: #333;">exact_tys</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">Type</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 right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span></span>
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942
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942
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<pre style="margin: 0;"> <span id="LC942" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">exact_ty</span><span class="p">,</span> <span class="n" style="color: #333;">exact_tys</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">foldTyCo</span> <span class="n" style="color: #333;">exactTcvFolder</span></span>
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<pre style="margin: 0;"> <span id="LC943" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC944" class="line" lang="haskell"><span class="n" style="color: #333;">exactTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoVarSet</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 right">Endo</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC944" class="line" lang="haskell"><span class="n" style="color: #333;">exactTcvFolder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">TyCoAcc</span></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC945" class="line" lang="haskell"><span class="n" style="color: #333;">exactTcvFolder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">deepTcvFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">tcView</span> <span class="p">}</span></span>
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<pre style="margin: 0;"> <span id="LC946" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- This is the key line</span></span>
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<pre style="margin: 0;"> <span id="LC947" class="line" lang="haskell"></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/commit/16ef62d4e72205a79fcdf33726f920e27ed490e2#6a120b0673f8920127d8fffdaa16f01b90cc92d7"><strong>compiler/GHC/Tc/Utils/Zonk.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">@@ -4,7 +4,7 @@</td>
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<pre style="margin: 0;"> <span id="LC4" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC5" 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="LC6" class="line" lang="haskell"></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 CPP, TupleSections #-}</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 CPP, TupleSections<span class="idiff left right">, PatternSynonyms</span> #-}</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;">{-# LANGUAGE TypeFamilies #-}</span></span>
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<pre style="margin: 0;"> <span id="LC9" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE FlexibleContexts #-}</span></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 ViewPatterns #-}</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">@@ -94,6 +94,7 @@ import Control.Monad</td>
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<pre style="margin: 0;"> <span id="LC94" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Semigroup</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">Semigroup</span></span>
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<pre style="margin: 0;"> <span id="LC95" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.List</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">partition</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC96" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Control.Arrow</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">second</span> <span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC97" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">GHC.Exts</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">oneShot</span> <span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC98" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC99" 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="LC100" 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">@@ -1920,54 +1921,63 @@ zapCoercion ze co = do { t1 <- zonkTcTypeToTypeX ze t1</td>
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<pre style="margin: 0;"> <span id="LC1921" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoM</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TcCoercion</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC1922" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Find the free CoVars of an un-zonked TcCoercion -- but without</span></span>
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<pre style="margin: 0;"> <span id="LC1923" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- zonking it and returning a perhaps large new coercion</span></span>
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<pre style="margin: 0;">-<span id="LC1923" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoM</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">run<span class="idiff left">EndoM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_co</span></span><span class="idiff"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">emptyInScope</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="n" style="color: #333;">emptyDVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC1924" class="line" lang="haskell"><span class="n" style="color: #333;">coVarsOfCoM</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">run<span class="idiff left">TCAM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_co</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="kt" style="color: #458; font-weight: 600;"><span class="idiff">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff right">emptyInScope</span></span> <span class="n" style="color: #333;">emptyDVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC1925" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1925" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_of_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InScopeBndrs</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">TcCoercion</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">Endo</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">-<span id="LC1926" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_of_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InScopeBndrs</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">TcType</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">Endo</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC1926" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_of_co</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TcCoercion</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">TyCoAcc</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;">+<span id="LC1927" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_of_ty</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TcType</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">TyCoAcc</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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<pre style="margin: 0;"> <span id="LC1928" class="line" lang="haskell"><span class="p">(</span><span class="n" style="color: #333;">co_vars_of_ty</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">,</span> <span class="n" style="color: #333;">co_vars_of_co</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;">foldTyCo</span> <span class="n" style="color: #333;">co_vars_folder</span></span>
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<pre style="margin: 0;"> <span id="LC1929" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC1929" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_folder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InScopeBndrs</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 right">Endo</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;">+<span id="LC1930" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_folder</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p"><span class="idiff left">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff right">TyCoAcc</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC1931" class="line" lang="haskell"><span class="n" style="color: #333;">co_vars_folder</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TyCoFolder</span> <span class="p">{</span> <span class="n" style="color: #333;">tcf_view</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">noView</span></span>
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<pre style="margin: 0;"> <span id="LC1932" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_tyvar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_tyvar</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_covar</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_covar</span></span>
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<pre style="margin: 0;"> <span id="LC1933" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">tcf_hole</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_hole</span><span class="p">,</span> <span class="n" style="color: #333;">tcf_tycobinder</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">do_bndr</span> <span class="p">}</span></span>
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1933
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1934
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<pre style="margin: 0;"> <span id="LC1934" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1934
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<pre style="margin: 0;">-<span id="LC1934" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;"><span class="idiff left">_</span></span><span class="idiff right"> </span><span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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1935
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<pre style="margin: 0;">-<span id="LC1935" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">v</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">Endo</span>M</span> <span class="n" style="color: #333;">do_it</span></span>
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1935
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<pre style="margin: 0;">+<span id="LC1935" class="line" lang="haskell"> <span class="n" style="color: #333;">do_tyvar</span> <span class="kr" style="font-weight: 600;">_</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mempty</span></span>
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1936
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<pre style="margin: 0;">+<span id="LC1936" class="line" lang="haskell"> <span class="n" style="color: #333;">do_covar</span> <span class="n" style="color: #333;"><span class="idiff left">v</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">TCA</span>M</span> <span class="n" style="color: #333;">do_it</span></span>
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1936
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1937
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<pre style="margin: 0;"> <span id="LC1937" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1937
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<pre style="margin: 0;">-<span id="LC1937" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</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;">do_it</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">acc</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="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">acc</span></span>
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1940
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<pre style="margin: 0;">-<span id="LC1940" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left">|</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">otherwise</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">runEndoM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_ty</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">is</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">varType</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">v</span></span><span class="p"><span class="idiff right">))</span></span> <span class="o" style="font-weight: 600;">$</span></span>
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1941
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<pre style="margin: 0;">-<span id="LC1941" class="line" lang="haskell"> <span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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1942
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<pre style="margin: 0;">-<span id="LC1942" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tcv</span></span><span class="idiff"> </span><span class="kr" style="font-weight: 600;"><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">extendVarSet</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">is</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">tcv</span></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;">do_hole</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InScopeBndrs</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">CoercionHole</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">Endo</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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1945
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<pre style="margin: 0;">-<span id="LC1945" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">hole</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoercionHole</span> <span class="p">{</span> <span class="n" style="color: #333;">ch_ref</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ref</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="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">EndoM</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff right">\</span></span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></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;">do_it</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">InScopeBndrs</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">-></span></span><span class="idiff right"> </span><span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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1939
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<pre style="margin: 0;">+<span id="LC1939" class="line" lang="haskell"> <span class="n" style="color: #333;">do_it</span> <span class="n" style="color: #333;"><span class="idiff left">is</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">is</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">acc</span></span>
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1940
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<pre style="margin: 0;">+<span id="LC1940" class="line" lang="haskell"> <span class="idiff left right"> </span><span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">v</span> <span class="p">`</span><span class="n" style="color: #333;">elemDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">acc</span></span>
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1941
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<pre style="margin: 0;">+<span id="LC1941" 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="n" style="color: #333;"><span class="idiff">otherwise</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">runTCAM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_ty</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">varType</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">v</span></span><span class="p"><span class="idiff">))</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">emptyInScope</span></span> <span class="o" style="font-weight: 600;">$</span></span>
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1942
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<pre style="margin: 0;">+<span id="LC1942" class="line" lang="haskell"> <span class="idiff left right"> </span><span class="n" style="color: #333;">acc</span> <span class="p">`</span><span class="n" style="color: #333;">extendDVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">v</span></span>
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1943
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<pre style="margin: 0;">+<span id="LC1943" class="line" lang="haskell"> <span class="n" style="color: #333;">do_bndr</span> <span class="n" style="color: #333;"><span class="idiff left">tcv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">_vis</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">fvs</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">extendInScopeM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">tcv</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">fvs</span></span></span>
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1944
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<pre style="margin: 0;">+<span id="LC1944" class="line" lang="haskell"></span>
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1945
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<pre style="margin: 0;">+<span id="LC1945" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">CoercionHole</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">TyCoAcc</span>M</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">DCoVarSet</span></span>
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1946
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<pre style="margin: 0;">+<span id="LC1946" class="line" lang="haskell"> <span class="n" style="color: #333;">do_hole</span> <span class="n" style="color: #333;">hole</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CoercionHole</span> <span class="p">{</span> <span class="n" style="color: #333;">ch_ref</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">ref</span> <span class="p">})</span></span>
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1947
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<pre style="margin: 0;">+<span id="LC1947" 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">TCAM</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">$</span></span><span class="idiff"> </span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">\</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">is</span></span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span></span>
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1947
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1948
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<pre style="margin: 0;"> <span id="LC1948" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">contents</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">readTcRef</span> <span class="n" style="color: #333;">ref</span></span>
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1948
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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="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">contents</span> <span class="kr" style="font-weight: 600;">of</span></span>
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1949
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<pre style="margin: 0;">-<span id="LC1949" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">run<span class="idiff left">EndoM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_co</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">is</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="n" style="color: #333;">acc</span></span>
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1950
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<pre style="margin: 0;">+<span id="LC1950" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">co</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">run<span class="idiff left">TCAM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="n" style="color: #333;"><span class="idiff">co_vars_of_co</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">is</span></span> <span class="n" style="color: #333;">acc</span></span>
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1950
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1951
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<pre style="margin: 0;"> <span id="LC1951" 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="kr" style="font-weight: 600;">do</span> <span class="p">{</span> <span class="n" style="color: #333;">traceTc</span> <span class="s" style="color: #d14;">"Zonking unfilled coercion hole (zap)"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">hole</span><span class="p">)</span></span>
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1951
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1952
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<pre style="margin: 0;"> <span id="LC1952" class="line" lang="haskell"> <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="n" style="color: #333;">acc</span> <span class="p">}</span> <span class="p">}</span></span>
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1952
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1953
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<pre style="margin: 0;"> <span id="LC1953" class="line" lang="haskell"></span>
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1953
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1954
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<pre style="margin: 0;"> <span id="LC1954" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------------------------------------</span></span>
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1954
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<pre style="margin: 0;">-<span id="LC1954" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">EndoM is copied from package 'foldl', but I don't want</span></span></span>
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1955
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<pre style="margin: 0;">-<span id="LC1955" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">to add a new dependency to GHC for 6 lines of code</span></span></span>
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1956
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<pre style="margin: 0;">-<span id="LC1956" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">newtype</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">EndoM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">m</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">a</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">EndoM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">runEndoM</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">a</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">m</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">a</span></span> <span class="p">}</span></span>
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1955
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<pre style="margin: 0;">+<span id="LC1955" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">Based on EndoM in package 'foldl', but with added InScopeBndrs</span></span></span>
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1956
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<pre style="margin: 0;">+<span id="LC1956" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- <span class="idiff left right">c.f. TyCoAcc in GHC.Core.TyCo.FVs</span></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;">newtype</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TyCoAccM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">m</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">acc</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">TCAM'</span></span><span class="idiff"> </span><span class="p"><span class="idiff">{</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">runTCAM</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">FVs</span></span><span class="o" style="font-weight: 600;"><span class="idiff">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff">InScopeBndrs</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">acc</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">m</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">acc</span></span> <span class="p">}</span></span>
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1957
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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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1958
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<pre style="margin: 0;">-<span id="LC1958" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Monad</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Semigroup</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EndoM</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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1959
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<pre style="margin: 0;">-<span id="LC1959" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">EndoM</span> <span class="n" style="color: #333;">f</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;">EndoM</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">EndoM</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;">g</span><span class="p">)</span></span>
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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;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">TCAM</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">acc</span><span class="o" style="font-weight: 600;">.</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">InScopeBndrs</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAccM</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">acc</span></span>
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1960
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<pre style="margin: 0;">+<span id="LC1960" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# COMPLETE TCAM #-}</span></span>
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1961
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<pre style="margin: 0;">+<span id="LC1961" class="line" lang="haskell"><span class="n" style="color: #333;">pattern</span> <span class="kt" style="color: #458; font-weight: 600;">TCAM</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;">TCAM'</span> <span class="n" style="color: #333;">f</span></span>
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1962
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<pre style="margin: 0;">+<span id="LC1962" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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1963
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<pre style="margin: 0;">+<span id="LC1963" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">TCAM</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;">TCAM'</span> <span class="p">(</span><span class="n" style="color: #333;">oneShot</span> <span class="n" style="color: #333;">f</span><span class="p">)</span></span>
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1964
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<pre style="margin: 0;">+<span id="LC1964" class="line" lang="haskell"></span>
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1965
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<pre style="margin: 0;">+<span id="LC1965" class="line" lang="haskell"><span class="n" style="color: #333;">extendInScopeM</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;">TyCoAccM</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TyCoAccM</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">acc</span></span>
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1966
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<pre style="margin: 0;">+<span id="LC1966" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- Gather the argument free vars in an empty in-scope set</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;">extendInScopeM</span> <span class="n" style="color: #333;">tcv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCAM</span> <span class="n" style="color: #333;">f</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCAM</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">f</span> <span class="p">(</span><span class="n" style="color: #333;">is</span> <span class="p">`</span><span class="n" style="color: #333;">extendVarSet</span><span class="p">`</span> <span class="n" style="color: #333;">tcv</span><span class="p">)</span> <span class="n" style="color: #333;">acc</span><span class="p">)</span></span>
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1968
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<pre style="margin: 0;">+<span id="LC1968" class="line" lang="haskell"></span>
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1969
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<pre style="margin: 0;">+<span id="LC1969" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Monad</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Semigroup</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TyCoAccM</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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1970
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<pre style="margin: 0;">+<span id="LC1970" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCAM</span> <span class="n" style="color: #333;">f</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;">TCAM</span> <span class="n" style="color: #333;">g</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCAM</span> <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">\</span><span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</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;">acc</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">f</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</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;">g</span> <span class="n" style="color: #333;">is</span> <span class="n" style="color: #333;">acc</span> <span class="p">})</span></span>
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1960
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1972
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<pre style="margin: 0;"> <span id="LC1972" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE (<>) #-}</span></span>
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1961
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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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1962
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<td class="diff-line-num new_line old" 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">
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<pre style="margin: 0;">-<span id="LC1962" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Monad</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">Endo</span>M</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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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;">mempty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">EndoM</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff right">return</span></span></span>
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<td class="diff-line-num new old_line" data-linenumber="1964" 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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1974
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<pre style="margin: 0;">+<span id="LC1974" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Monad</span> <span class="n" style="color: #333;">m</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">Monoid</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left right">TyCoAcc</span>M</span> <span class="n" style="color: #333;">m</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>
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1975
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<pre style="margin: 0;">+<span id="LC1975" class="line" lang="haskell"> <span class="n" style="color: #333;">mempty</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">TCAM</span></span><span class="idiff"> </span><span class="p"><span class="idiff">(</span></span><span class="nf" style="color: #900; font-weight: 600;"><span class="idiff">\</span></span><span class="kr" style="font-weight: 600;"><span class="idiff">_</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">acc</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">return</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">acc</span></span><span class="p"><span class="idiff right">)</span></span></span>
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1964
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1976
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<pre style="margin: 0;"> <span id="LC1976" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE mempty #-}</span></span>
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1965
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1977
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<pre style="margin: 0;"> <span id="LC1977" class="line" lang="haskell"> <span class="n" style="color: #333;">mappend</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Semigroup</span><span class="o" style="font-weight: 600;">.<></span><span class="p">)</span></span>
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1966
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1978
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<pre style="margin: 0;"> <span id="LC1978" class="line" lang="haskell"> <span class="cp" style="color: #999; font-weight: 600;">{-# INLINE mappend #-}</span></span>
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1967
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<pre style="margin: 0;">-<span id="LC1967" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- End of copy</span></span>
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1968
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<pre style="margin: 0;">-<span id="LC1968" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------------------------------------</span></span>
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1969
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<pre style="margin: 0;">-<span id="LC1969" class="line" lang="haskell"></span>
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1970
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1979
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<pre style="margin: 0;"> <span id="LC1979" class="line" lang="haskell"></span>
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1980
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<pre style="margin: 0;">+<span id="LC1980" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">--------------------------------------</span></span>
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1971
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1981
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<pre style="margin: 0;"> <span id="LC1981" class="line" lang="haskell"><span class="n" style="color: #333;">zonkTcTypeToTypeX</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ZonkEnv</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcType</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>
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1972
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1982
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<pre style="margin: 0;"> <span id="LC1982" class="line" lang="haskell"><span class="n" style="color: #333;">zonkTcTypesToTypesX</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ZonkEnv</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TcType</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">]</span></span>
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1973
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<td class="diff-line-num new_line" data-linenumber="1983" 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">
1983
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<pre style="margin: 0;"> <span id="LC1983" class="line" lang="haskell"><span class="n" style="color: #333;">zonkCoToCo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ZonkEnv</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;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">Coercion</span></span>
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