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GitLab

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<h3>

Ben Gamari pushed to branch ghc-9.0

at <a href="https://gitlab.haskell.org/ghc/ghc">Glasgow Haskell Compiler / GHC</a>

</h3>

<h4>

Commits:

</h4>

<ul>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/edfa896e6c2ddc89b4cd6b1d659237fe3d2efc57">edfa896e</a></strong>

<div>

<span>by Arnaud Spiwack</span>

<i>at 2020-09-29T11:41:25-04:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Pattern guards BindStmt always use multiplicity Many

Fixes #18439 .

The rhs of the pattern guard was consumed with multiplicity one, while

the pattern assumed it was Many. We use Many everywhere instead.

This is behaviour consistent with that of `case` expression. See #18738.

(cherry picked from commit 2707c4eae4cf99e6da2709e128f560d91e468357)

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/a64ea9d005b6c27173e7c7e69fe632ee137a8ee6">a64ea9d0</a></strong>

<div>

<span>by Krzysztof Gogolewski</span>

<i>at 2020-09-29T11:41:25-04:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Disallow linear types in FFI (#18472)

(cherry picked from commit 160fba4aa306c0649c72a6dcd7c98d9782a0e74b)

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/f8d8c34372619dac7a17d570cbf3c4a1404ee7d3">f8d8c343</a></strong>

<div>

<span>by Krzysztof Gogolewski</span>

<i>at 2020-09-29T11:41:25-04:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Various documentation fixes

* Remove UnliftedFFITypes from conf. Some time ago, this extension

  was undocumented and we had to silence a warning.

  This is no longer needed.

* Use r'' in conf.py. This fixes a Sphinx warning:

  WARNING: Support for evaluating Python 2 syntax is deprecated and will be removed in Sphinx 4.0. Convert docs/users_guide/conf.py to Python 3 syntax.

* Mark GHCForeignImportPrim as documented

* Fix formatting in template_haskell.rst

* Remove 'recursive do' from the list of unsupported items in TH

(cherry picked from commit 83407ffc7acc00cc025b9f6ed063add9ab9f9bcc)

</pre>

</li>

<li>

<strong><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7">90fe5cff</a></strong>

<div>

<span>by Krzysztof Gogolewski</span>

<i>at 2020-09-29T11:41:25-04:00</i>

</div>

<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix handling of function coercions (#18747)

This was broken when we added multiplicity to the function type.

(cherry picked from commit e124f2a7d9a5932a4c2383fd3f9dd772b2059885)

</pre>

</li>

</ul>

<h4>20 changed files:</h4>

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<a href="#783e5dae6e86931f06700fc088fb7d48c8a07386">

compiler/GHC/Core/Coercion.hs

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<li class="file-stats">

<a href="#08a3d553a8ca7a753d77697815b63cd85e7dfbd6">

compiler/GHC/Tc/Gen/Foreign.hs

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<li class="file-stats">

<a href="#3377164bfe9a1f1a8cfd588703ae1e0ea1e91cf9">

compiler/GHC/Tc/Gen/Match.hs

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<li class="file-stats">

<a href="#2c8c4ca2eac2ad8b108ae37fa1b91a9f7676ca1e">

docs/users_guide/conf.py

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<li class="file-stats">

<a href="#c69ed1e399ce62d9f23fc51d2806dab1d9b7bfd6">

docs/users_guide/expected-undocumented-flags.txt

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<li class="file-stats">

<a href="#616606d7ec92f17c847240a7bc125e1d8c9c00a1">

docs/users_guide/extending_ghc.rst

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<a href="#826ad549c24ff288da4f5466de09215b9c5f56a3">

docs/users_guide/exts/defer_type_errors.rst

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<a href="#f1fb2cbc6312f41f6aac14d2046c24ce0c5cbea2">

docs/users_guide/exts/ffi.rst

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<a href="#44ff1c833688c00a68594f271e75b363b982d003">

docs/users_guide/exts/safe_haskell.rst

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<a href="#f0474104bf5123c0904d8fa7745d89840c730d16">

docs/users_guide/exts/template_haskell.rst

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<a href="#915e4cd0ff4c05278c1d4b529ae8997ea58835f0">

docs/users_guide/exts/typed_holes.rst

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docs/users_guide/using-optimisation.rst

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testsuite/tests/linear/should_fail/LinearFFI.hs

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testsuite/tests/linear/should_fail/LinearFFI.stderr

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<li class="file-stats">

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testsuite/tests/linear/should_fail/LinearPatternGuardWildcard.hs

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testsuite/tests/linear/should_fail/all.T

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testsuite/tests/simplCore/should_compile/T18747A.hs

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<a href="#fc07c260b75644727a8cdc1af5c861a44d4bfb5e">

testsuite/tests/simplCore/should_compile/all.T

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<h4>Changes:</h4>

<li id="783e5dae6e86931f06700fc088fb7d48c8a07386">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#783e5dae6e86931f06700fc088fb7d48c8a07386"><strong>compiler/GHC/Core/Coercion.hs</strong></a>

<hr>

<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">

<tr class="line_holder match" id="" style="line-height: 1.6;">

<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1469" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="1469" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -1469,7 +1469,7 @@ instCoercion (Pair lty rty) g w</td>

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<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="1469" 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">

1469

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<td class="diff-line-num new_line" data-linenumber="1469" 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">

1469

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1469" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">isFunTy</span> <span class="n" style="color: #333;">lty</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isFunTy</span> <span class="n" style="color: #333;">rty</span></span>

</pre>

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</tr>

<tr class="line_holder" id="" style="line-height: 1.6;">

<td class="diff-line-num old_line" data-linenumber="1470" 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">

1470

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<td class="diff-line-num new_line" data-linenumber="1470" 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">

1470

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<pre style="margin: 0;"> <span id="LC1470" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- g :: (t1 -> t2) ~ (t3 -> t4)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1471" 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">

1471

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<td class="diff-line-num new_line" data-linenumber="1471" 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">

1471

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<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">

<pre style="margin: 0;"> <span id="LC1471" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- returns t2 ~ t4</span></span>

</pre>

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<tr class="line_holder old" id="" style="line-height: 1.6;">

<td class="diff-line-num old old_line" data-linenumber="1472" 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">

1472

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<td class="diff-line-num new_line old" data-linenumber="1472" 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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<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">

<pre style="margin: 0;">-<span id="LC1472" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkNthCo</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="mi" style="color: #099;"><span class="idiff left">3</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">g</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- extract result type, which is the 4</span>th argument to (->)</span></span>

</pre>

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<tr class="line_holder new" id="" style="line-height: 1.6;">

<td class="diff-line-num new old_line" data-linenumber="1473" 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="1472" 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="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC1472" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkNthCo</span> <span class="kt" style="color: #458; font-weight: 600;">Nominal</span> <span class="mi" style="color: #099;"><span class="idiff left">4</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">g</span></span><span class="idiff"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right">-- extract result type, which is the 5</span>th argument to (->)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1473" 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">

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<td class="diff-line-num new_line" data-linenumber="1473" 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">

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<pre style="margin: 0;"> <span id="LC1473" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span> <span class="c1" style="color: #998; font-style: italic;">-- one forall, one funty...</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1474" 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">

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<td class="diff-line-num new_line" data-linenumber="1474" 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">

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<pre style="margin: 0;"> <span id="LC1474" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="1475" 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">

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<td class="diff-line-num new_line" data-linenumber="1475" 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">

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<pre style="margin: 0;"> <span id="LC1475" class="line" lang="haskell"></span>

</pre>

</td>

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</table>

<br>

</li>

<li id="08a3d553a8ca7a753d77697815b63cd85e7dfbd6">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#08a3d553a8ca7a753d77697815b63cd85e7dfbd6"><strong>compiler/GHC/Tc/Gen/Foreign.hs</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="237" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="237" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -237,7 +237,7 @@ tcFImport (L dloc fo@(ForeignImport { fd_name = L nloc nm, fd_sig_ty = hs_ty</td>

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<pre style="margin: 0;"> <span id="LC237" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- things are LocalIds.  However, it does not need zonking,</span></span>

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<pre style="margin: 0;"> <span id="LC238" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- (so GHC.Tc.Utils.Zonk.zonkForeignExports ignores it).</span></span>

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<pre style="margin: 0;"> <span id="LC239" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC240" class="line" lang="haskell">       <span class="p">;</span> <span class="n" style="color: #333;">imp_decl'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tcCheckFIType</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">map</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">scaledThing</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">arg_tys</span></span><span class="p"><span class="idiff right">)</span></span> <span class="n" style="color: #333;">res_ty</span> <span class="n" style="color: #333;">imp_decl</span></span>

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<pre style="margin: 0;">+<span id="LC240" class="line" lang="haskell">       <span class="p">;</span> <span class="n" style="color: #333;">imp_decl'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tcCheckFIType</span> <span class="n" style="color: #333;"><span class="idiff left right">arg_tys</span></span> <span class="n" style="color: #333;">res_ty</span> <span class="n" style="color: #333;">imp_decl</span></span>

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<pre style="margin: 0;"> <span id="LC241" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- Can't use sig_ty here because sig_ty :: Type and</span></span>

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<pre style="margin: 0;"> <span id="LC242" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- we need HsType Id hence the undefined</span></span>

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<pre style="margin: 0;"> <span id="LC243" class="line" lang="haskell">       <span class="p">;</span> <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">fi_decl</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ForeignImport</span> <span class="p">{</span> <span class="n" style="color: #333;">fd_name</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">nloc</span> <span class="n" style="color: #333;">id</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">@@ -249,14 +249,14 @@ tcFImport d = pprPanic "tcFImport" (ppr d)</td>

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<pre style="margin: 0;"> <span id="LC249" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC250" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- ------------ Checking types for foreign import ----------------------</span></span>

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<pre style="margin: 0;"> <span id="LC251" class="line" lang="haskell"></span>

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<pre style="margin: 0;">-<span id="LC252" class="line" lang="haskell"><span class="n" style="color: #333;">tcCheckFIType</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;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ForeignImport</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;">ForeignImport</span></span>

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<pre style="margin: 0;">+<span id="LC252" class="line" lang="haskell"><span class="n" style="color: #333;">tcCheckFIType</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Scaled</span></span><span class="idiff right"> </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;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">ForeignImport</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;">ForeignImport</span></span>

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<pre style="margin: 0;"> <span id="LC253" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC254" class="line" lang="haskell"><span class="n" style="color: #333;">tcCheckFIType</span> <span class="n" style="color: #333;">arg_tys</span> <span class="n" style="color: #333;">res_ty</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CImport</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">lc</span> <span class="n" style="color: #333;">cconv</span><span class="p">)</span> <span class="n" style="color: #333;">safety</span> <span class="n" style="color: #333;">mh</span> <span class="n" style="color: #333;">l</span><span class="o" style="font-weight: 600;">@</span><span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CLabel</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="n" style="color: #333;">src</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC255" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Foreign import label</span></span>

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<pre style="margin: 0;"> <span id="LC256" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">checkCg</span> <span class="n" style="color: #333;">checkCOrAsmOrLlvmOrInterp</span></span>

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<pre style="margin: 0;"> <span id="LC257" class="line" lang="haskell">       <span class="c1" style="color: #998; font-style: italic;">-- NB check res_ty not sig_ty!</span></span>

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<td class="diff-line-num old_line" data-linenumber="258" 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">

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<pre style="margin: 0;"> <span id="LC258" class="line" lang="haskell">       <span class="c1" style="color: #998; font-style: italic;">--    In case sig_ty is (forall a. ForeignPtr a)</span></span>

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<pre style="margin: 0;">-<span id="LC259" class="line" lang="haskell">       <span class="n" style="color: #333;">check</span> <span class="p">(</span><span class="n" style="color: #333;">isFFILabelTy</span> <span class="p">(</span><span class="n" style="color: #333;">mkVisFunTys<span class="idiff left right">Many</span></span> <span class="n" style="color: #333;">arg_tys</span> <span class="n" style="color: #333;">res_ty</span><span class="p">))</span> <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">empty</span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC259" class="line" lang="haskell">       <span class="n" style="color: #333;">check</span> <span class="p">(</span><span class="n" style="color: #333;">isFFILabelTy</span> <span class="p">(</span><span class="n" style="color: #333;">mkVisFunTys</span> <span class="n" style="color: #333;">arg_tys</span> <span class="n" style="color: #333;">res_ty</span><span class="p">))</span> <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">empty</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC260" class="line" lang="haskell">       <span class="n" style="color: #333;">cconv'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">checkCConv</span> <span class="n" style="color: #333;">cconv</span></span>

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<pre style="margin: 0;"> <span id="LC261" class="line" lang="haskell">       <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CImport</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">lc</span> <span class="n" style="color: #333;">cconv'</span><span class="p">)</span> <span class="n" style="color: #333;">safety</span> <span class="n" style="color: #333;">mh</span> <span class="n" style="color: #333;">l</span> <span class="n" style="color: #333;">src</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC262" class="line" lang="haskell"></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="268" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="268" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -268,7 +268,9 @@ tcCheckFIType arg_tys res_ty (CImport (L lc cconv) safety mh CWrapper src) = do</td>

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<pre style="margin: 0;"> <span id="LC268" class="line" lang="haskell">    <span class="n" style="color: #333;">checkCg</span> <span class="n" style="color: #333;">checkCOrAsmOrLlvmOrInterp</span></span>

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<pre style="margin: 0;"> <span id="LC269" class="line" lang="haskell">    <span class="n" style="color: #333;">cconv'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">checkCConv</span> <span class="n" style="color: #333;">cconv</span></span>

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<pre style="margin: 0;"> <span id="LC270" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">arg_tys</span> <span class="kr" style="font-weight: 600;">of</span></span>

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<pre style="margin: 0;">-<span id="LC271" class="line" lang="haskell">        <span class="p">[</span><span class="n" style="color: #333;">arg1_ty</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span> <span class="n" style="color: #333;">checkForeignArgs</span> <span class="n" style="color: #333;">isFFIExternalTy</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">scaledThing</span> <span class="n" style="color: #333;">arg1_tys</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC271" class="line" lang="haskell">        <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">Scaled</span> <span class="n" style="color: #333;">arg1_mult</span> <span class="n" style="color: #333;">arg1_ty</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>

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<pre style="margin: 0;">+<span id="LC272" class="line" lang="haskell">                        <span class="n" style="color: #333;">checkNoLinearFFI</span> <span class="n" style="color: #333;">arg1_mult</span></span>

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<pre style="margin: 0;">+<span id="LC273" class="line" lang="haskell">                        <span class="n" style="color: #333;">checkForeignArgs</span> <span class="n" style="color: #333;">isFFIExternalTy</span> <span class="n" style="color: #333;">arg1_tys</span></span>

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<pre style="margin: 0;"> <span id="LC274" class="line" lang="haskell">                        <span class="n" style="color: #333;">checkForeignRes</span> <span class="n" style="color: #333;">nonIOok</span>  <span class="n" style="color: #333;">checkSafe</span> <span class="n" style="color: #333;">isFFIExportResultTy</span> <span class="n" style="color: #333;">res1_ty</span></span>

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<pre style="margin: 0;"> <span id="LC275" class="line" lang="haskell">                        <span class="n" style="color: #333;">checkForeignRes</span> <span class="n" style="color: #333;">mustBeIO</span> <span class="n" style="color: #333;">checkSafe</span> <span class="p">(</span><span class="n" style="color: #333;">isFFIDynTy</span> <span class="n" style="color: #333;">arg1_ty</span><span class="p">)</span> <span class="n" style="color: #333;">res_ty</span></span>

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<pre style="margin: 0;"> <span id="LC276" class="line" lang="haskell">                  <span class="kr" style="font-weight: 600;">where</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="284" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -284,9 +286,10 @@ tcCheckFIType arg_tys res_ty idecl@(CImport (L lc cconv) (L ls safety) mh</td>

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<pre style="margin: 0;"> <span id="LC286" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">arg_tys</span> <span class="kr" style="font-weight: 600;">of</span>           <span class="c1" style="color: #998; font-style: italic;">-- The first arg must be Ptr or FunPtr</span></span>

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<pre style="margin: 0;"> <span id="LC287" class="line" lang="haskell">        <span class="kt" style="color: #458; font-weight: 600;">[]</span>                <span class="o" style="font-weight: 600;">-></span></span>

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<pre style="margin: 0;"> <span id="LC288" class="line" lang="haskell">          <span class="n" style="color: #333;">addErrTc</span> <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span><span class="o" style="font-weight: 600;">.</span><span class="n" style="color: #333;">empty</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"At least one argument expected"</span><span class="p">))</span></span>

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<pre style="margin: 0;">-<span id="LC287" class="line" lang="haskell">        <span class="p">(</span><span class="n" style="color: #333;">arg1_ty</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">arg_tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>

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<pre style="margin: 0;">+<span id="LC289" class="line" lang="haskell">        <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">Scaled</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">arg1_mult</span></span><span class="idiff right"> </span><span class="n" style="color: #333;">arg1_ty</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">arg_tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>

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<pre style="margin: 0;"> <span id="LC290" class="line" lang="haskell">          <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>

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<pre style="margin: 0;">-<span id="LC289" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">curried_res_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVisFunTysMany</span> <span class="n" style="color: #333;">arg_tys</span> <span class="n" style="color: #333;">res_ty</span></span>

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<pre style="margin: 0;">+<span id="LC291" class="line" lang="haskell">          <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">curried_res_ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVisFunTys</span> <span class="n" style="color: #333;">arg_tys</span> <span class="n" style="color: #333;">res_ty</span></span>

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<pre style="margin: 0;">+<span id="LC292" class="line" lang="haskell">          <span class="n" style="color: #333;">checkNoLinearFFI</span> <span class="n" style="color: #333;">arg1_mult</span></span>

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<pre style="margin: 0;"> <span id="LC293" class="line" lang="haskell">          <span class="n" style="color: #333;">check</span> <span class="p">(</span><span class="n" style="color: #333;">isFFIDynTy</span> <span class="n" style="color: #333;">curried_res_ty</span> <span class="n" style="color: #333;">arg1_ty</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC294" class="line" lang="haskell">                <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="n" style="color: #333;">argument</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC295" class="line" lang="haskell">          <span class="n" style="color: #333;">checkForeignArgs</span> <span class="p">(</span><span class="n" style="color: #333;">isFFIArgumentTy</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">safety</span><span class="p">)</span> <span class="n" style="color: #333;">arg_tys</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="311" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -311,7 +314,7 @@ tcCheckFIType arg_tys res_ty idecl@(CImport (L lc cconv) (L ls safety) mh</td>

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<pre style="margin: 0;"> <span id="LC314" class="line" lang="haskell">      <span class="n" style="color: #333;">dflags</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">getDynFlags</span></span>

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<pre style="margin: 0;"> <span id="LC315" class="line" lang="haskell">      <span class="n" style="color: #333;">checkForeignArgs</span> <span class="p">(</span><span class="n" style="color: #333;">isFFIArgumentTy</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;">safety</span><span class="p">)</span> <span class="n" style="color: #333;">arg_tys</span></span>

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<pre style="margin: 0;"> <span id="LC316" class="line" lang="haskell">      <span class="n" style="color: #333;">checkForeignRes</span> <span class="n" style="color: #333;">nonIOok</span> <span class="n" style="color: #333;">checkSafe</span> <span class="p">(</span><span class="n" style="color: #333;">isFFIImportResultTy</span> <span class="n" style="color: #333;">dflags</span><span class="p">)</span> <span class="n" style="color: #333;">res_ty</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="317" 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="LC314" class="line" lang="haskell">      <span class="n" style="color: #333;">checkMissingAmpersand</span> <span class="n" style="color: #333;">dflags</span> <span class="n" style="color: #333;"><span class="idiff left right">arg_tys</span></span> <span class="n" style="color: #333;">res_ty</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="315" 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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<pre style="margin: 0;">+<span id="LC317" class="line" lang="haskell">      <span class="n" style="color: #333;">checkMissingAmpersand</span> <span class="n" style="color: #333;">dflags</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">map</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">scaledThing</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">arg_tys</span></span><span class="p"><span class="idiff right">)</span></span> <span class="n" style="color: #333;">res_ty</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="318" 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">

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<pre style="margin: 0;"> <span id="LC318" class="line" lang="haskell">      <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">target</span> <span class="kr" style="font-weight: 600;">of</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="319" 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">

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<pre style="margin: 0;"> <span id="LC319" class="line" lang="haskell">          <span class="kt" style="color: #458; font-weight: 600;">StaticTarget</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC320" class="line" lang="haskell">           <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">arg_tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="399" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="402" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -399,7 +402,7 @@ tcCheckFEType sig_ty (CExport (L l (CExportStatic esrc str cconv)) src) = do</td>

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402

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<pre style="margin: 0;"> <span id="LC402" class="line" lang="haskell">    <span class="n" style="color: #333;">checkCg</span> <span class="n" style="color: #333;">checkCOrAsmOrLlvm</span></span>

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<pre style="margin: 0;"> <span id="LC403" class="line" lang="haskell">    <span class="n" style="color: #333;">checkTc</span> <span class="p">(</span><span class="n" style="color: #333;">isCLabelString</span> <span class="n" style="color: #333;">str</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">badCName</span> <span class="n" style="color: #333;">str</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="401" 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">

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<td class="diff-line-num new_line" data-linenumber="404" 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">

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<pre style="margin: 0;"> <span id="LC404" class="line" lang="haskell">    <span class="n" style="color: #333;">cconv'</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">checkCConv</span> <span class="n" style="color: #333;">cconv</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="405" 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="LC402" class="line" lang="haskell">    <span class="n" style="color: #333;">checkForeignArgs</span> <span class="n" style="color: #333;">isFFIExternalTy</span> <span class="p"><span class="idiff left">(</span></span><span class="n" style="color: #333;"><span class="idiff">map</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">scaledThing</span></span><span class="idiff"> </span><span class="n" style="color: #333;"><span class="idiff">arg_tys</span></span><span class="p"><span class="idiff right">)</span></span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="405" 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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<pre style="margin: 0;">+<span id="LC405" class="line" lang="haskell">    <span class="n" style="color: #333;">checkForeignArgs</span> <span class="n" style="color: #333;">isFFIExternalTy</span> <span class="n" style="color: #333;"><span class="idiff left right">arg_tys</span></span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="406" 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">

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<pre style="margin: 0;"> <span id="LC406" class="line" lang="haskell">    <span class="n" style="color: #333;">checkForeignRes</span> <span class="n" style="color: #333;">nonIOok</span> <span class="n" style="color: #333;">noCheckSafe</span> <span class="n" style="color: #333;">isFFIExportResultTy</span> <span class="n" style="color: #333;">res_ty</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="407" 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">

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<pre style="margin: 0;"> <span id="LC407" class="line" lang="haskell">    <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CExport</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L</span> <span class="n" style="color: #333;">l</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CExportStatic</span> <span class="n" style="color: #333;">esrc</span> <span class="n" style="color: #333;">str</span> <span class="n" style="color: #333;">cconv'</span><span class="p">))</span> <span class="n" style="color: #333;">src</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="408" 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">

408

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<pre style="margin: 0;"> <span id="LC408" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="416" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="419" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -416,10 +419,16 @@ tcCheckFEType sig_ty (CExport (L l (CExportStatic esrc str cconv)) src) = do</td>

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416

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<td class="diff-line-num new_line" data-linenumber="419" 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">

419

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<pre style="margin: 0;"> <span id="LC419" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">-}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="417" 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">

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<td class="diff-line-num new_line" data-linenumber="420" 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">

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<pre style="margin: 0;"> <span id="LC420" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC421" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">------------ Checking argument types for foreign import ----------------------</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC419" class="line" lang="haskell"><span class="n" style="color: #333;">checkForeignArgs</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="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Validity</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;">Type</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="nb" style="color: #0086b3;">()</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC422" class="line" lang="haskell"><span class="n" style="color: #333;">checkForeignArgs</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="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Validity</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;"><span class="idiff left">Scaled</span></span><span class="idiff right"> </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;">TcM</span> <span class="nb" style="color: #0086b3;">()</span></span>

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<pre style="margin: 0;"> <span id="LC423" class="line" lang="haskell"><span class="n" style="color: #333;">checkForeignArgs</span> <span class="n" style="color: #333;">pred</span> <span class="n" style="color: #333;">tys</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mapM_</span> <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">tys</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC424" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC422" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">check</span> <span class="p">(</span><span class="n" style="color: #333;">pred</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="n" style="color: #333;">argument</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC425" class="line" lang="haskell">    <span class="n" style="color: #333;">go</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Scaled</span> <span class="n" style="color: #333;">mult</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;">checkNoLinearFFI</span> <span class="n" style="color: #333;">mult</span> <span class="o" style="font-weight: 600;">>></span></span>

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<pre style="margin: 0;">+<span id="LC426" class="line" lang="haskell">                          <span class="n" style="color: #333;">check</span> <span class="p">(</span><span class="n" style="color: #333;">pred</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="n" style="color: #333;">argument</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC427" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC428" class="line" lang="haskell"><span class="n" style="color: #333;">checkNoLinearFFI</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Mult</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="nb" style="color: #0086b3;">()</span>  <span class="c1" style="color: #998; font-style: italic;">-- No linear types in FFI (#18472)</span></span>

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<pre style="margin: 0;">+<span id="LC429" class="line" lang="haskell"><span class="n" style="color: #333;">checkNoLinearFFI</span> <span class="kt" style="color: #458; font-weight: 600;">Many</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">return</span> <span class="nb" style="color: #0086b3;">()</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC430" class="line" lang="haskell"><span class="n" style="color: #333;">checkNoLinearFFI</span> <span class="kr" style="font-weight: 600;">_</span>    <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">addErrTc</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">illegalForeignTyErr</span> <span class="n" style="color: #333;">argument</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC431" class="line" lang="haskell">                                   <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Linear types are not supported in FFI declarations, see #18472"</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC432" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC433" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">------------ Checking result types for foreign calls ----------------------</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC434" class="line" lang="haskell"><span class="cd">-- | Check that the type has the form</span></span>

</pre>

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<br>

</li>

<li id="3377164bfe9a1f1a8cfd588703ae1e0ea1e91cf9">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#3377164bfe9a1f1a8cfd588703ae1e0ea1e91cf9"><strong>compiler/GHC/Tc/Gen/Match.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">@@ -388,7 +388,14 @@ tcGuardStmt _ (BodyStmt _ guard _ _) res_ty thing_inside</td>

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<pre style="margin: 0;"> <span id="LC388" class="line" lang="haskell">        <span class="p">;</span> <span class="n" style="color: #333;">return</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BodyStmt</span> <span class="n" style="color: #333;">boolTy</span> <span class="n" style="color: #333;">guard'</span> <span class="n" style="color: #333;">noSyntaxExpr</span> <span class="n" style="color: #333;">noSyntaxExpr</span><span class="p">,</span> <span class="n" style="color: #333;">thing</span><span class="p">)</span> <span class="p">}</span></span>

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<pre style="margin: 0;"> <span id="LC389" class="line" lang="haskell"></span>

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<pre style="margin: 0;"> <span id="LC390" class="line" lang="haskell"><span class="n" style="color: #333;">tcGuardStmt</span> <span class="n" style="color: #333;">ctxt</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">BindStmt</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">pat</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span> <span class="n" style="color: #333;">res_ty</span> <span class="n" style="color: #333;">thing_inside</span></span>

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<pre style="margin: 0;">-<span id="LC391" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span>  <span class="p">{</span> <span class="p">(</span><span class="n" style="color: #333;">rhs'</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tcInferRhoNC</span> <span class="n" style="color: #333;">rhs</span></span>

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<pre style="margin: 0;">+<span id="LC391" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">do</span>  <span class="p">{</span> <span class="c1" style="color: #998; font-style: italic;">-- The Many on the next line and the unrestricted on the line after</span></span>

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<pre style="margin: 0;">+<span id="LC392" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- are linked. These must be the same multiplicity. Consider</span></span>

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<pre style="margin: 0;">+<span id="LC393" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">--   x <- rhs -> u</span></span>

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<pre style="margin: 0;">+<span id="LC394" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">--</span></span>

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<pre style="margin: 0;">+<span id="LC395" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- The multiplicity of x in u must be the same as the multiplicity at</span></span>

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<pre style="margin: 0;">+<span id="LC396" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- which the rhs has been consumed. When solving #18738, we want these</span></span>

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<pre style="margin: 0;">+<span id="LC397" class="line" lang="haskell">          <span class="c1" style="color: #998; font-style: italic;">-- two multiplicity to still be the same.</span></span>

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<pre style="margin: 0;">+<span id="LC398" class="line" lang="haskell">          <span class="p">(</span><span class="n" style="color: #333;">rhs'</span><span class="p">,</span> <span class="n" style="color: #333;">rhs_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tcScalingUsage</span> <span class="kt" style="color: #458; font-weight: 600;">Many</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">tcInferRhoNC</span> <span class="n" style="color: #333;">rhs</span></span>

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<pre style="margin: 0;"> <span id="LC399" class="line" lang="haskell">                                   <span class="c1" style="color: #998; font-style: italic;">-- Stmt has a context already</span></span>

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<pre style="margin: 0;"> <span id="LC400" class="line" lang="haskell">        <span class="p">;</span> <span class="p">(</span><span class="n" style="color: #333;">pat'</span><span class="p">,</span> <span class="n" style="color: #333;">thing</span><span class="p">)</span>  <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">tcCheckPat_O</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">StmtCtxt</span> <span class="n" style="color: #333;">ctxt</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">lexprCtOrigin</span> <span class="n" style="color: #333;">rhs</span><span class="p">)</span></span>

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<pre style="margin: 0;"> <span id="LC401" class="line" lang="haskell">                                         <span class="n" style="color: #333;">pat</span> <span class="p">(</span><span class="n" style="color: #333;">unrestricted</span> <span class="n" style="color: #333;">rhs_ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>

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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#2c8c4ca2eac2ad8b108ae37fa1b91a9f7676ca1e"><strong>docs/users_guide/conf.py</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">@@ -38,9 +38,6 @@ nitpick_ignore = [</td>

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<pre style="margin: 0;"> <span id="LC38" class="line" lang="python"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="39" 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">

39

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<pre style="margin: 0;"> <span id="LC39" class="line" lang="python">    <span class="p">(</span><span class="s" style="color: #d14;">"extension"</span><span class="p">,</span> <span class="s" style="color: #d14;">"DoAndIfThenElse"</span><span class="p">),</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC40" class="line" lang="python">    <span class="p">(</span><span class="s" style="color: #d14;">"extension"</span><span class="p">,</span> <span class="s" style="color: #d14;">"RelaxedPolyRec"</span><span class="p">),</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="41" 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="LC41" class="line" lang="python"></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="42" 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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<td class="diff-line-num new_line old" data-linenumber="41" 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="LC42" class="line" lang="python">    <span class="c1" style="color: #998; font-style: italic;"># See #16629</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="43" 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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<td class="diff-line-num new_line old" data-linenumber="41" 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="LC43" class="line" lang="python">    <span class="p">(</span><span class="s" style="color: #d14;">"extension"</span><span class="p">,</span> <span class="s" style="color: #d14;">"UnliftedFFITypes"</span><span class="p">),</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="41" 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">

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<pre style="margin: 0;"> <span id="LC41" class="line" lang="python"><span class="p">]</span></span>

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<td class="diff-line-num new_line" data-linenumber="42" 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">

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<pre style="margin: 0;"> <span id="LC42" class="line" lang="python"></span>

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<td class="diff-line-num old_line" data-linenumber="46" 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">

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<td class="diff-line-num new_line" data-linenumber="43" 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">

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<pre style="margin: 0;"> <span id="LC43" class="line" lang="python"><span class="n" style="color: #333;">rst_prolog</span> <span class="o" style="font-weight: 600;">=</span> <span class="s" style="color: #d14;">"""</span></span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="96" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="93" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -96,13 +93,13 @@ htmlhelp_basename = 'GHCUsersGuide'</td>

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<pre style="margin: 0;"> <span id="LC93" class="line" lang="python"><span class="n" style="color: #333;">latex_elements</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">{</span></span>

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<pre style="margin: 0;"> <span id="LC94" class="line" lang="python">    <span class="s" style="color: #d14;">'inputenc'</span><span class="p">:</span> <span class="s" style="color: #d14;">''</span><span class="p">,</span></span>

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<pre style="margin: 0;"> <span id="LC95" class="line" lang="python">    <span class="s" style="color: #d14;">'utf8extra'</span><span class="p">:</span> <span class="s" style="color: #d14;">''</span><span class="p">,</span></span>

</pre>

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<pre style="margin: 0;">-<span id="LC99" class="line" lang="python">    <span class="s" style="color: #d14;">'preamble'</span><span class="p">:</span> <span class="s" style="color: #d14;">'''</span></span>

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<td class="diff-line-num new old_line" data-linenumber="100" 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="96" 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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<pre style="margin: 0;">+<span id="LC96" class="line" lang="python">    <span class="s" style="color: #d14;">'preamble'</span><span class="p">:</span> <span class="s" style="color: #d14;"><span class="idiff left right">r</span>'''</span></span>

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<td class="diff-line-num new_line" data-linenumber="97" 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">

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<pre style="margin: 0;"> <span id="LC97" class="line" lang="python"><span class="s" style="color: #d14;">\usepackage{fontspec}</span></span>

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<td class="diff-line-num old_line" data-linenumber="101" 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">

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<td class="diff-line-num new_line" data-linenumber="98" 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">

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<pre style="margin: 0;"> <span id="LC98" class="line" lang="python"><span class="s" style="color: #d14;">\usepackage{makeidx}</span></span>

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<td class="diff-line-num old_line" data-linenumber="102" 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">

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<pre style="margin: 0;"> <span id="LC99" class="line" lang="python"><span class="s" style="color: #d14;">\setsansfont{DejaVu Sans}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="103" 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">

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<td class="diff-line-num new_line" data-linenumber="100" 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">

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<pre style="margin: 0;"> <span id="LC100" class="line" lang="python"><span class="s" style="color: #d14;">\setromanfont{DejaVu Serif}</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="104" 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">

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<pre style="margin: 0;"> <span id="LC101" class="line" lang="python"><span class="s" style="color: #d14;">\setmonofont{DejaVu Sans Mono}</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="105" 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="LC105" class="line" lang="python"><span class="s" style="color: #d14;">\setlength{</span><span class="se" style="color: #d14;">\<span class="idiff left right">\</span></span><span class="s" style="color: #d14;">tymin}{45pt}</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC102" class="line" lang="python"><span class="s" style="color: #d14;">\setlength{\tymin}{45pt}</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC103" class="line" lang="python"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="107" 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">

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<pre style="margin: 0;"> <span id="LC104" class="line" lang="python"><span class="s" style="color: #d14;">% Avoid a torrent of over-full \hbox warnings</span></span>

</pre>

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<pre style="margin: 0;"> <span id="LC105" class="line" lang="python"><span class="s" style="color: #d14;">\usepackage{microtype}</span></span>

</pre>

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</li>

<li id="c69ed1e399ce62d9f23fc51d2806dab1d9b7bfd6">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#c69ed1e399ce62d9f23fc51d2806dab1d9b7bfd6"><strong>docs/users_guide/expected-undocumented-flags.txt</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="38" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="38" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<td class="diff-line-num new_line" data-linenumber="38" 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">

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<pre style="margin: 0;"> <span id="LC38" class="line" lang="plaintext">-XAutoDeriveTypeable</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="39" 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">

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<td class="diff-line-num new_line" data-linenumber="39" 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">

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<pre style="margin: 0;"> <span id="LC39" class="line" lang="plaintext">-XDoAndIfThenElse</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="40" 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">

40

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<pre style="margin: 0;"> <span id="LC40" class="line" lang="plaintext">-XDoRec</span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="41" 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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<td class="diff-line-num new_line old" data-linenumber="41" 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="LC41" class="line" lang="plaintext">-XGHCForeignImportPrim</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="42" 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">

42

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<td class="diff-line-num new_line" data-linenumber="41" 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">

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<pre style="margin: 0;"> <span id="LC41" class="line" lang="plaintext">-XGenerics</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="43" 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">

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<pre style="margin: 0;"> <span id="LC42" class="line" lang="plaintext">-XImplicitPrelude</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="44" 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">

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<pre style="margin: 0;"> <span id="LC43" class="line" lang="plaintext">-XJavaScriptFFI</span>

</pre>

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<li id="616606d7ec92f17c847240a7bc125e1d8c9c00a1">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#616606d7ec92f17c847240a7bc125e1d8c9c00a1"><strong>docs/users_guide/extending_ghc.rst</strong></a>

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<td class="diff-line-num unfold js-unfold new_line" data-linenumber="800" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

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<pre style="margin: 0;"> <span id="LC800" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">GHC</span><span class="p">.</span><span class="n" style="color: #333;">Hs</span><span class="p">.</span><span class="n" style="color: #333;">Decls</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="801" 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">

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<pre style="margin: 0;"> <span id="LC801" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">GHC</span><span class="p">.</span><span class="n" style="color: #333;">Hs</span><span class="p">.</span><span class="n" style="color: #333;">Expr</span></span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="802" 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">

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<pre style="margin: 0;"> <span id="LC802" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">GHC</span><span class="p">.</span><span class="n" style="color: #333;">Hs</span><span class="p">.</span><span class="n" style="color: #333;">ImpExp</span></span>

</pre>

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<td class="diff-line-num new_line old" data-linenumber="803" 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="LC803" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">Avail</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="804" 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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<td class="diff-line-num new_line old" data-linenumber="803" 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="LC804" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">Outputable</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="805" 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="803" 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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<pre style="margin: 0;">+<span id="LC803" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;"><span class="idiff left">GHC</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Types</span></span><span class="p"><span class="idiff right">.</span></span><span class="n" style="color: #333;">Avail</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="805" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="804" 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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<pre style="margin: 0;">+<span id="LC804" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;"><span class="idiff left">GHC</span></span><span class="p"><span class="idiff">.</span></span><span class="n" style="color: #333;"><span class="idiff">Utils</span></span><span class="p"><span class="idiff right">.</span></span><span class="n" style="color: #333;">Outputable</span></span>

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<pre style="margin: 0;"> <span id="LC805" class="line" lang="mosel">    <span class="n" style="color: #333;">import</span> <span class="n" style="color: #333;">GHC</span><span class="p">.</span><span class="n" style="color: #333;">Hs</span><span class="p">.</span><span class="n" style="color: #333;">Doc</span></span>

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<pre style="margin: 0;"> <span id="LC806" class="line" lang="mosel"></span>

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<pre style="margin: 0;"> <span id="LC807" class="line" lang="mosel">    <span class="n" style="color: #333;">plugin</span> <span class="p">::</span> <span class="n" style="color: #333;">Plugin</span></span>

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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#826ad549c24ff288da4f5466de09215b9c5f56a3"><strong>docs/users_guide/exts/defer_type_errors.rst</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">@@ -115,6 +115,7 @@ In a few cases, even equality constraints cannot be deferred.  Specifically:</td>

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<pre style="margin: 0;"> <span id="LC115" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC116" class="line" lang="plaintext">  This type signature contains a kind error which cannot be deferred.</span>

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<pre style="margin: 0;"> <span id="LC117" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC118" class="line" lang="plaintext">- Type equalities under a forall cannot be deferred (c.f. #14605).</span>

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<pre style="margin: 0;">+<span id="LC118" class="line" lang="plaintext">- Type equalities under a forall cannot be deferred (c.f. `#14605</span>

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<pre style="margin: 0;">+<span id="LC119" class="line" lang="plaintext">  <https://gitlab.haskell.org/ghc/ghc/issues/14605>`_).</span>

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<pre style="margin: 0;"> <span id="LC120" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC121" class="line" lang="plaintext"></span></pre>

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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#f1fb2cbc6312f41f6aac14d2046c24ce0c5cbea2"><strong>docs/users_guide/exts/ffi.rst</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">@@ -263,8 +263,13 @@ and is not permitted to appear nested within the type, as in the following</td>

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<pre style="margin: 0;"> <span id="LC263" class="line" lang="plaintext">Primitive imports</span>

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<pre style="margin: 0;"> <span id="LC264" class="line" lang="plaintext">~~~~~~~~~~~~~~~~~</span>

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<pre style="margin: 0;"> <span id="LC265" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC266" class="line" lang="plaintext">GHC extends the FFI with an additional calling convention ``prim``,</span>

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<pre style="margin: 0;">-<span id="LC267" class="line" lang="plaintext">e.g.: ::</span>

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<pre style="margin: 0;">+<span id="LC266" class="line" lang="plaintext">.. extension:: GHCForeignImportPrim</span>

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<pre style="margin: 0;">+<span id="LC267" class="line" lang="plaintext">    :shortdesc: Enable prim calling convention. Intended for internal use only.</span>

</pre>

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268

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<pre style="margin: 0;">+<span id="LC268" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="268" 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="269" 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">

269

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<pre style="margin: 0;">+<span id="LC269" class="line" lang="plaintext">    :since: 6.12.1</span>

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<td class="diff-line-num new old_line" data-linenumber="268" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="270" 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">

270

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<pre style="margin: 0;">+<span id="LC270" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="268" 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="271" 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">

271

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<pre style="margin: 0;">+<span id="LC271" class="line" lang="plaintext">With :extension:`GHCForeignImportPrim`, GHC extends the FFI with an additional</span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="272" 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">

272

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<pre style="margin: 0;">+<span id="LC272" class="line" lang="plaintext">calling convention ``prim``, e.g.: ::</span>

</pre>

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268

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<td class="diff-line-num new_line" data-linenumber="273" 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">

273

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<pre style="margin: 0;"> <span id="LC273" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="269" 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">

269

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<td class="diff-line-num new_line" data-linenumber="274" 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">

274

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<pre style="margin: 0;"> <span id="LC274" class="line" lang="plaintext">       foreign import prim "foo" foo :: ByteArray# -> (# Int#, Int# #)</span>

</pre>

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270

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275

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<pre style="margin: 0;"> <span id="LC275" class="line" lang="plaintext"></span>

</pre>

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<br>

</li>

<li id="44ff1c833688c00a68594f271e75b363b982d003">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#44ff1c833688c00a68594f271e75b363b982d003"><strong>docs/users_guide/exts/safe_haskell.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="781" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="781" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -781,7 +781,7 @@ And five warning flags:</td>

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<td class="diff-line-num old_line" data-linenumber="781" 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">

781

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<td class="diff-line-num new_line" data-linenumber="781" 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">

781

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<pre style="margin: 0;"> <span id="LC781" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">shortdesc</span><span class="p">:</span> <span class="n" style="color: #333;">warn</span> <span class="n" style="color: #333;">when</span> <span class="n" style="color: #333;">an</span> <span class="n" style="color: #333;">explicitly</span> <span class="n" style="color: #333;">Safe</span> <span class="n" style="color: #333;">Haskell</span> <span class="n" style="color: #333;">module</span> <span class="k" style="font-weight: 600;">imports</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">Safe</span><span class="p">-</span><span class="n" style="color: #333;">Inferred</span> <span class="n" style="color: #333;">one</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="782" 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">

782

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<td class="diff-line-num new_line" data-linenumber="782" 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">

782

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<pre style="margin: 0;"> <span id="LC782" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">type</span><span class="p">:</span> <span class="k" style="font-weight: 600;">dynamic</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="783" 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">

783

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<td class="diff-line-num new_line" data-linenumber="783" 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">

783

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<pre style="margin: 0;"> <span id="LC783" class="line" lang="mosel">    <span class="p">:</span><span class="nb" style="color: #0086b3;">reverse</span><span class="p">:</span> <span class="p">-</span><span class="n" style="color: #333;">Wno</span><span class="p">-</span><span class="n" style="color: #333;">inferred</span><span class="p">-</span><span class="n" style="color: #333;">safe</span><span class="p">-</span><span class="k" style="font-weight: 600;">imports</span></span>

</pre>

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<td class="diff-line-num old old_line" data-linenumber="784" 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">

784

</td>

<td class="diff-line-num new_line old" data-linenumber="784" 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="LC784" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">category</span><span class="p">:</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="785" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="784" 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">

784

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<pre style="margin: 0;">+<span id="LC784" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">category</span><span class="p">:</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">warnings</span></span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="785" 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">

785

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<td class="diff-line-num new_line" data-linenumber="785" 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">

785

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<pre style="margin: 0;"> <span id="LC785" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="786" 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">

786

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<td class="diff-line-num new_line" data-linenumber="786" 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">

786

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<pre style="margin: 0;"> <span id="LC786" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">since</span><span class="p">:</span> <span class="m" style="color: #099;">8.10.1</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="787" 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">

787

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<td class="diff-line-num new_line" data-linenumber="787" 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">

787

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<pre style="margin: 0;"> <span id="LC787" class="line" lang="mosel"></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="815" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -815,7 +815,7 @@ And five warning flags:</td>

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815

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<td class="diff-line-num new_line" data-linenumber="815" 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">

815

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<pre style="margin: 0;"> <span id="LC815" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">shortdesc</span><span class="p">:</span> <span class="n" style="color: #333;">warn</span> <span class="n" style="color: #333;">when</span> <span class="n" style="color: #333;">the</span> <span class="n" style="color: #333;">Safe</span> <span class="n" style="color: #333;">Haskell</span> <span class="n" style="color: #333;">mode</span> <span class="n" style="color: #333;">is</span> <span class="k" style="font-weight: 600;">not</span> <span class="n" style="color: #333;">explicitly</span> <span class="n" style="color: #333;">specified</span><span class="p">.</span></span>

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816

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816

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<pre style="margin: 0;"> <span id="LC816" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">type</span><span class="p">:</span> <span class="k" style="font-weight: 600;">dynamic</span></span>

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<td class="diff-line-num old_line" data-linenumber="817" 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">

817

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817

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<pre style="margin: 0;"> <span id="LC817" class="line" lang="mosel">    <span class="p">:</span><span class="nb" style="color: #0086b3;">reverse</span><span class="p">:</span> <span class="p">-</span><span class="n" style="color: #333;">Wno</span><span class="p">-</span><span class="n" style="color: #333;">missing</span><span class="p">-</span><span class="n" style="color: #333;">safe</span><span class="p">-</span><span class="n" style="color: #333;">haskell</span><span class="p">-</span><span class="n" style="color: #333;">mode</span></span>

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818

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<td class="diff-line-num new_line old" data-linenumber="818" 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="LC818" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">category</span><span class="p">:</span></span>

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<pre style="margin: 0;">+<span id="LC818" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">category</span><span class="p">:</span><span class="idiff left"> </span><span class="n" style="color: #333;"><span class="idiff right">warnings</span></span></span>

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819

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<pre style="margin: 0;"> <span id="LC819" class="line" lang="mosel"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC820" class="line" lang="mosel">    <span class="p">:</span><span class="n" style="color: #333;">since</span><span class="p">:</span> <span class="m" style="color: #099;">8.10.1</span></span>

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821

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821

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<pre style="margin: 0;"> <span id="LC821" class="line" lang="mosel"></span>

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<li id="f0474104bf5123c0904d8fa7745d89840c730d16">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#f0474104bf5123c0904d8fa7745d89840c730d16"><strong>docs/users_guide/exts/template_haskell.rst</strong></a>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="109" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="109" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -109,7 +109,7 @@ The :extension:`TemplateHaskellQuotes` extension is considered safe under</td>

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<pre style="margin: 0;"> <span id="LC109" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC110" class="line" lang="plaintext">    plusC = [| $oneC + $twoC |]</span>

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<pre style="margin: 0;"> <span id="LC111" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC112" class="line" lang="plaintext">- The precise type of a quotation depends on the types of the nested splices inside it::</span>

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<pre style="margin: 0;">+<span id="LC112" class="line" lang="plaintext">- <span class="idiff left right"> </span>The precise type of a quotation depends on the types of the nested splices inside it::</span>

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<pre style="margin: 0;"> <span id="LC113" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC114" class="line" lang="plaintext">      -- Add a redundant constraint to demonstrate that constraints on the</span>

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<pre style="margin: 0;"> <span id="LC115" class="line" lang="plaintext">      -- monad used to build the representation are propagated when using nested</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="125" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="125" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -125,9 +125,8 @@ The :extension:`TemplateHaskellQuotes` extension is considered safe under</td>

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<pre style="margin: 0;"> <span id="LC125" class="line" lang="plaintext">   Remember, a top-level splice still requires its argument to be of type ``Q Exp``.</span>

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<pre style="margin: 0;"> <span id="LC126" class="line" lang="plaintext">   So then splicing in ``g`` will cause ``m`` to be instantiated to ``Q``::</span>

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<pre style="margin: 0;"> <span id="LC127" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC128" class="line" lang="plaintext">    h :: Int</span>

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<pre style="margin: 0;">-<span id="LC129" class="line" lang="plaintext">    h = $(g) -- m ~ Q</span>

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<pre style="margin: 0;">-<span id="LC130" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC128" class="line" lang="plaintext">      h :: Int</span>

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<pre style="margin: 0;">+<span id="LC129" class="line" lang="plaintext">      h = $(g) -- m ~ Q</span>

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<pre style="margin: 0;"> <span id="LC130" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC131" class="line" lang="plaintext">-  A *typed* expression splice is written ``$$x``, where ``x`` is</span>

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<pre style="margin: 0;"> <span id="LC132" class="line" lang="plaintext">   is an arbitrary expression.</span>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="376" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="375" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -376,8 +375,6 @@ The :extension:`TemplateHaskellQuotes` extension is considered safe under</td>

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<pre style="margin: 0;"> <span id="LC375" class="line" lang="plaintext">   However, there are some GHC-specific extensions which expression</span>

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<pre style="margin: 0;"> <span id="LC376" class="line" lang="plaintext">   quotations currently do not support, including</span>

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<pre style="margin: 0;"> <span id="LC377" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">-<span id="LC379" class="line" lang="plaintext">   -  Recursive ``do``-statements (see :ghc-ticket:`1262`)</span>

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<pre style="margin: 0;">-<span id="LC380" class="line" lang="plaintext"></span>

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<pre style="margin: 0;"> <span id="LC378" class="line" lang="plaintext">   -  Type holes in typed splices (see :ghc-ticket:`10945` and</span>

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<pre style="margin: 0;"> <span id="LC379" class="line" lang="plaintext">      :ghc-ticket:`10946`)</span>

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<pre style="margin: 0;"> <span id="LC380" class="line" lang="plaintext"></span>

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<br>

</li>

<li id="915e4cd0ff4c05278c1d4b529ae8997ea58835f0">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#915e4cd0ff4c05278c1d4b529ae8997ea58835f0"><strong>docs/users_guide/exts/typed_holes.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="546" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="546" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -546,6 +546,7 @@ Sorting can be toggled with :ghc-flag:`-fsort-valid-hole-fits`</td>

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<pre style="margin: 0;"> <span id="LC546" class="line" lang="plaintext">    :shortdesc: Sort valid hole fits by size.</span>

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<pre style="margin: 0;"> <span id="LC547" class="line" lang="plaintext">    :type: dynamic</span>

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<pre style="margin: 0;"> <span id="LC548" class="line" lang="plaintext">    :reverse: -fno-sort-by-size-hole-fits</span>

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<pre style="margin: 0;">+<span id="LC549" class="line" lang="plaintext">    :category: verbosity</span>

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549

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<pre style="margin: 0;"> <span id="LC550" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC551" class="line" lang="plaintext">    :default: on</span>

</pre>

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551

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<pre style="margin: 0;"> <span id="LC552" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="557" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="558" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -557,6 +558,7 @@ Sorting can be toggled with :ghc-flag:`-fsort-valid-hole-fits`</td>

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<pre style="margin: 0;"> <span id="LC558" class="line" lang="plaintext">    :shortdesc: Sort valid hole fits by subsumption.</span>

</pre>

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<pre style="margin: 0;"> <span id="LC559" class="line" lang="plaintext">    :type: dynamic</span>

</pre>

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<pre style="margin: 0;"> <span id="LC560" class="line" lang="plaintext">    :reverse: -fno-sort-by-subsumption-hole-fits</span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="561" 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">

561

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<pre style="margin: 0;">+<span id="LC561" class="line" lang="plaintext">    :category: verbosity</span>

</pre>

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<pre style="margin: 0;"> <span id="LC562" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;"> <span id="LC563" class="line" lang="plaintext">    :default: off</span>

</pre>

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<pre style="margin: 0;"> <span id="LC564" class="line" lang="plaintext"></span>

</pre>

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<br>

</li>

<li id="2e45f2cd303dd998950a7c8042e796a5b2abd64f">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#2e45f2cd303dd998950a7c8042e796a5b2abd64f"><strong>docs/users_guide/using-optimisation.rst</strong></a>

<hr>

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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="362" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="diff-line-num unfold js-unfold new_line" data-linenumber="362" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: 0 5px;" align="right" bgcolor="#fafafa">...</td>

<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -362,6 +362,7 @@ by saying ``-fno-wombat``.</td>

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<pre style="margin: 0;"> <span id="LC362" class="line" lang="plaintext">    :default: on</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="363" 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">

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<td class="diff-line-num new_line" data-linenumber="363" 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">

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<pre style="margin: 0;"> <span id="LC363" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="364" 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">

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<td class="diff-line-num new_line" data-linenumber="364" 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">

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<pre style="margin: 0;"> <span id="LC364" class="line" lang="plaintext">    Use a special demand transformer for dictionary selectors.</span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="365" 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="365" 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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<pre style="margin: 0;">+<span id="LC365" class="line" lang="plaintext">    Behaviour is unconditionally enabled starting with 9.2</span>

</pre>

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<td class="diff-line-num new_line" data-linenumber="366" 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">

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<pre style="margin: 0;"> <span id="LC366" class="line" lang="plaintext"></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="366" 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">

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<td class="diff-line-num new_line" data-linenumber="367" 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">

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<pre style="margin: 0;"> <span id="LC367" class="line" lang="plaintext">.. ghc-flag:: -fdo-eta-reduction</span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="367" 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">

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<td class="diff-line-num new_line" data-linenumber="368" 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">

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<pre style="margin: 0;"> <span id="LC368" class="line" lang="plaintext">    :shortdesc: Enable eta-reduction. Implied by :ghc-flag:`-O`.</span>

</pre>

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<br>

</li>

<li id="7c748bced26d07aa398acaa4bf03ba916acb63d9">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#7c748bced26d07aa398acaa4bf03ba916acb63d9"><strong>testsuite/tests/linear/should_fail/LinearFFI.hs</strong></a>

<hr>

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<td class="diff-line-num new new_line" data-linenumber="1" 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">

1

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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 LinearTypes #-}</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">LinearFFI</span> <span class="kr" style="font-weight: 600;">where</span> <span class="c1" style="color: #998; font-style: italic;">-- #18472</span></span>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Foreign.Ptr</span></span>

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="n" style="color: #333;">foreign</span> <span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">ccall</span> <span class="s" style="color: #d14;">"exp"</span> <span class="n" style="color: #333;">c_exp</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Double</span> <span class="o" style="font-weight: 600;">#-></span> <span class="kt" style="color: #458; font-weight: 600;">Double</span></span>

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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="n" style="color: #333;">foreign</span> <span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">stdcall</span> <span class="s" style="color: #d14;">"dynamic"</span> <span class="n" style="color: #333;">d8</span>  <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">FunPtr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span><span class="p">)</span> <span class="o" style="font-weight: 600;">#-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="kt" style="color: #458; font-weight: 600;">Int</span></span>

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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="n" style="color: #333;">foreign</span> <span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">ccall</span> <span class="s" style="color: #d14;">"wrapper"</span> <span class="n" style="color: #333;">mkF</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span> <span class="o" style="font-weight: 600;">#-></span> <span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">FunPtr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">IO</span> <span class="nb" style="color: #0086b3;">()</span><span class="p">))</span></span></pre>

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<li id="520ea479966b20fb2f283b3078303b057163c15c">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#520ea479966b20fb2f283b3078303b057163c15c"><strong>testsuite/tests/linear/should_fail/LinearFFI.stderr</strong></a>

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<pre style="margin: 0;">+<span id="LC1" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="plaintext">LinearFFI.hs:6:1: error:</span>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="plaintext">    • Unacceptable argument type in foreign declaration:</span>

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="plaintext">        Linear types are not supported in FFI declarations, see #18472</span>

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="plaintext">    • When checking declaration:</span>

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="plaintext">        foreign import ccall safe "exp" c_exp :: Double #-> Double</span>

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<pre style="margin: 0;">+<span id="LC7" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC8" class="line" lang="plaintext">LinearFFI.hs:7:1: error:</span>

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<pre style="margin: 0;">+<span id="LC9" class="line" lang="plaintext">    • Unacceptable argument type in foreign declaration:</span>

</pre>

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<pre style="margin: 0;">+<span id="LC10" class="line" lang="plaintext">        Linear types are not supported in FFI declarations, see #18472</span>

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<pre style="margin: 0;">+<span id="LC11" class="line" lang="plaintext">    • When checking declaration:</span>

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12

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<pre style="margin: 0;">+<span id="LC12" class="line" lang="plaintext">        foreign import stdcall safe "dynamic" d8</span>

</pre>

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<pre style="margin: 0;">+<span id="LC13" class="line" lang="plaintext">          :: FunPtr (IO Int) #-> IO Int</span>

</pre>

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<pre style="margin: 0;">+<span id="LC14" class="line" lang="plaintext"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC15" class="line" lang="plaintext">LinearFFI.hs:8:1: error:</span>

</pre>

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<pre style="margin: 0;">+<span id="LC16" class="line" lang="plaintext">    • Unacceptable argument type in foreign declaration:</span>

</pre>

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<pre style="margin: 0;">+<span id="LC17" class="line" lang="plaintext">        Linear types are not supported in FFI declarations, see #18472</span>

</pre>

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18

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<pre style="margin: 0;">+<span id="LC18" class="line" lang="plaintext">    • When checking declaration:</span>

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<pre style="margin: 0;">+<span id="LC19" class="line" lang="plaintext">        foreign import ccall safe "wrapper" mkF</span>

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<pre style="margin: 0;">+<span id="LC20" class="line" lang="plaintext">          :: IO () #-> IO (FunPtr (IO ()))</span></pre>

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<br>

</li>

<li id="1ad049a7b967742a37712bb8c22ad74e6c93dbe5">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#1ad049a7b967742a37712bb8c22ad74e6c93dbe5"><strong>testsuite/tests/linear/should_fail/LinearPatternGuardWildcard.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 LinearTypes #-}</span></span>

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">LinearPatternGuardWildcard</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- See #18439</span></span>

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5

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="n" style="color: #333;">unsafeConsume</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="nb" style="color: #0086b3;">()</span></span>

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7

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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="n" style="color: #333;">unsafeConsume</span> <span class="n" style="color: #333;">x</span> <span class="o" 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 class="o" style="font-weight: 600;">=</span> <span class="nb" style="color: #0086b3;">()</span></span></pre>

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</li>

<li id="4a4bc7d89e9876aecd57118c56c7e5e1417a8257">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#4a4bc7d89e9876aecd57118c56c7e5e1417a8257"><strong>testsuite/tests/linear/should_fail/LinearPatternGuardWildcard.stderr</strong></a>

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1

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<pre style="margin: 0;">+<span id="LC1" class="line" lang="plaintext"></span>

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="plaintext">LinearPatternGuardWildcard.hs:7:15: error:</span>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="plaintext">    • Couldn't match type ‘'Many’ with ‘'One’</span>

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="plaintext">        arising from multiplicity of ‘x’</span>

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="plaintext">    • In an equation for ‘unsafeConsume’: unsafeConsume x | _ <- x = ()</span></pre>

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<li id="9eaf3d28760bfe4fb6839aeb7cad53d8f9bac1c1">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#9eaf3d28760bfe4fb6839aeb7cad53d8f9bac1c1"><strong>testsuite/tests/linear/should_fail/all.T</strong></a>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -27,3 +27,5 @@ test('LinearPolyType', expect_broken([436, broken_multiplicity_syntax]), compile</td>

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<pre style="margin: 0;"> <span id="LC27" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">LinearBottomMult</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_fail</span><span class="p">,</span> <span class="p">[''])</span></span>

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<pre style="margin: 0;"> <span id="LC28" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">LinearSequenceExpr</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_fail</span><span class="p">,</span> <span class="p">[''])</span></span>

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<pre style="margin: 0;"> <span id="LC29" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">LinearIf</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_fail</span><span class="p">,</span> <span class="p">[''])</span></span>

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<pre style="margin: 0;">+<span id="LC30" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">LinearPatternGuardWildcard</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_fail</span><span class="p">,</span> <span class="p">[''])</span></span>

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<pre style="margin: 0;">+<span id="LC31" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">LinearFFI</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile_fail</span><span class="p">,</span> <span class="p">[''])</span></span></pre>

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<li id="c426fe391385d11716b5d66b633cd374b4ee1cb8">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#c426fe391385d11716b5d66b633cd374b4ee1cb8"><strong>testsuite/tests/simplCore/should_compile/T18747A.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 AllowAmbiguousTypes #-}</span></span>

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE DataKinds #-}</span></span>

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE GADTs #-}</span></span>

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE PolyKinds #-}</span></span>

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE ScopedTypeVariables #-}</span></span>

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeFamilies #-}</span></span>

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<pre style="margin: 0;">+<span id="LC7" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE TypeOperators #-}</span></span>

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<pre style="margin: 0;">+<span id="LC8" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">T18747A</span> <span class="kr" style="font-weight: 600;">where</span></span>

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<pre style="margin: 0;">+<span id="LC9" class="line" lang="haskell"></span>

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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Kind</span></span>

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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Type.Equality</span></span>

</pre>

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12

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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="14" 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">

14

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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="15" 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">

15

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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="n" style="color: #333;">k</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="16" 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">

16

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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="17" 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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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SList</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">a</span><span class="o" style="font-weight: 600;">.</span> <span class="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;">Type</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="18" 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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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SNil</span>  <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SList</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">]</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="19" 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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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SCons</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">xs</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SList</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SList</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="21" 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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<pre style="margin: 0;">+<span id="LC21" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC22" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">U1</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">K1</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;">Sum</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="23" 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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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="24" 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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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SUniv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="25" 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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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SU1</span>      <span class="o" style="font-weight: 600;">::</span>                     <span class="kt" style="color: #458; font-weight: 600;">SUniv</span> <span class="kt" style="color: #458; font-weight: 600;">U1</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="26" 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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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SK1</span>      <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">c</span>           <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SUniv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">K1</span> <span class="n" style="color: #333;">c</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SSum</span>     <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SUniv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Sum</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="28" 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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<pre style="margin: 0;">+<span id="LC28" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SProduct</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SUniv</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="29" 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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<pre style="margin: 0;">+<span id="LC29" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SUniv</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="30" 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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<pre style="margin: 0;">+<span id="LC30" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="31" 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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<pre style="margin: 0;">+<span id="LC31" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Univ</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC32" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MkU1</span>      <span class="o" style="font-weight: 600;">::</span>                 <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="kt" style="color: #458; font-weight: 600;">U1</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="33" 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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<pre style="margin: 0;">+<span id="LC33" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MkK1</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="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">K1</span> <span class="n" style="color: #333;">c</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">L1</span>        <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">In</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;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Sum</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="35" 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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<pre style="margin: 0;">+<span id="LC35" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">R1</span>        <span class="o" style="font-weight: 600;">::</span>         <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Sum</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="36" 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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<pre style="margin: 0;">+<span id="LC36" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">In</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;">In</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC37" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="38" 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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<pre style="margin: 0;">+<span id="LC38" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">u</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="n" style="color: #333;">u</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="39" 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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<pre style="margin: 0;">+<span id="LC39" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SMkU1</span>      <span class="o" style="font-weight: 600;">::</span>                     <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="kt" style="color: #458; font-weight: 600;">MkU1</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="40" 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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<pre style="margin: 0;">+<span id="LC40" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SMkK1</span>      <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">c</span>           <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">c</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC41" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SL1</span>        <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span>           <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L1</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="42" 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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<pre style="margin: 0;">+<span id="LC42" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SR1</span>        <span class="o" style="font-weight: 600;">::</span>           <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">R1</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="43" 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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<pre style="margin: 0;">+<span id="LC43" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SMkProduct</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">b</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="n" style="color: #333;">a</span> <span class="n" style="color: #333;">b</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="44" 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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<pre style="margin: 0;">+<span id="LC44" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SIn</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="45" 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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<pre style="margin: 0;">+<span id="LC45" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="46" 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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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">Generic</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;">Type</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="47" 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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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">Rep</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;">Univ</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="48" 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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<pre style="margin: 0;">+<span id="LC48" class="line" lang="haskell">  <span class="n" style="color: #333;">from</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;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="49" 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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<pre style="margin: 0;">+<span id="LC49" class="line" lang="haskell">  <span class="n" style="color: #333;">to</span>   <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</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;">a</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="50" 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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<pre style="margin: 0;">+<span id="LC50" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="51" 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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<pre style="margin: 0;">+<span id="LC51" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">PGeneric</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;">Type</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="52" 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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<pre style="margin: 0;">+<span id="LC52" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PFrom</span> <span class="p">(</span><span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">a</span><span class="p">)</span>          <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="53" 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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<pre style="margin: 0;">+<span id="LC53" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PTo</span>   <span class="p">(</span><span class="n" style="color: #333;">x</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</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;">a</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="54" 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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<pre style="margin: 0;">+<span id="LC54" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="55" 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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<pre style="margin: 0;">+<span id="LC55" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">SGeneric</span> <span class="n" style="color: #333;">k</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="56" 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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<pre style="margin: 0;">+<span id="LC56" class="line" lang="haskell">  <span class="n" style="color: #333;">sFrom</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span><span class="o" style="font-weight: 600;">.</span>          <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PFrom</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC57" class="line" lang="haskell">  <span class="n" style="color: #333;">sTo</span>   <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</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;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</span> <span class="n" style="color: #333;">k</span><span class="p">))</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PTo</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span></span>

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<pre style="margin: 0;">+<span id="LC58" class="line" lang="haskell">  <span class="n" style="color: #333;">sTof</span>  <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span><span class="o" style="font-weight: 600;">.</span>          <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">PTo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PFrom</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;">a</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC59" class="line" lang="haskell">  <span class="n" style="color: #333;">sFot</span>  <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</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;">In</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Rep</span> <span class="n" style="color: #333;">k</span><span class="p">))</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">PFrom</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PTo</span> <span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</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="LC60" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC61" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Generic</span> <span class="p">[</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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<pre style="margin: 0;">+<span id="LC62" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">Rep</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;">Sum</span> <span class="kt" style="color: #458; font-weight: 600;">U1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Product</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">K1</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">K1</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]))</span></span>

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<pre style="margin: 0;">+<span id="LC63" class="line" lang="haskell">  <span class="n" style="color: #333;">from</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>     <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">L1</span> <span class="kt" style="color: #458; font-weight: 600;">MkU1</span></span>

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<pre style="margin: 0;">+<span id="LC64" class="line" lang="haskell">  <span class="n" style="color: #333;">from</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">R1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">))</span></span>

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<pre style="margin: 0;">+<span id="LC65" class="line" lang="haskell">  <span class="n" style="color: #333;">to</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L1</span> <span class="kt" style="color: #458; font-weight: 600;">MkU1</span><span class="p">)</span>                           <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC66" class="line" lang="haskell">  <span class="n" style="color: #333;">to</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">R1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">)))</span> <span class="o" style="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;">xs</span></span>

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<pre style="margin: 0;">+<span id="LC67" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC68" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">PGeneric</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC69" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PFrom</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">]</span>    <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">L1</span> <span class="kt" style="color: #458; font-weight: 600;">MkU1</span></span>

</pre>

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70

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<pre style="margin: 0;">+<span id="LC70" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PFrom</span> <span class="p">(</span><span class="n" style="color: #333;">x</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">R1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">))</span></span>

</pre>

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71

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<pre style="margin: 0;">+<span id="LC71" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PTo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">L1</span> <span class="kt" style="color: #458; font-weight: 600;">MkU1</span><span class="p">)</span>                           <span class="o" style="font-weight: 600;">=</span> <span class="sc" style="color: #d14;">'[</span><span class="err" style="color: #a61717; background-color: #e3d2d2;">]</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="72" 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">

72

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<pre style="margin: 0;">+<span id="LC72" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">PTo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">R1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">MkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">)))</span> <span class="o" style="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;">xs</span></span>

</pre>

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73

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<pre style="margin: 0;">+<span id="LC73" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="74" 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">

74

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<pre style="margin: 0;">+<span id="LC74" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">SGeneric</span> <span class="p">[</span><span class="n" style="color: #333;">a</span><span class="p">]</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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75

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<pre style="margin: 0;">+<span id="LC75" class="line" lang="haskell">  <span class="n" style="color: #333;">sFrom</span> <span class="kt" style="color: #458; font-weight: 600;">SNil</span>         <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SL1</span> <span class="kt" style="color: #458; font-weight: 600;">SMkU1</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="76" 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">

76

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<pre style="margin: 0;">+<span id="LC76" class="line" lang="haskell">  <span class="n" style="color: #333;">sFrom</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SCons</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SR1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">))</span></span>

</pre>

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77

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<pre style="margin: 0;">+<span id="LC77" class="line" lang="haskell">  <span class="n" style="color: #333;">sTo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SL1</span> <span class="kt" style="color: #458; font-weight: 600;">SMkU1</span><span class="p">)</span>                             <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SNil</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="78" 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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<pre style="margin: 0;">+<span id="LC78" class="line" lang="haskell">  <span class="n" style="color: #333;">sTo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SR1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkProduct</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkK1</span> <span class="n" style="color: #333;">x</span><span class="p">)</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkK1</span> <span class="n" style="color: #333;">xs</span><span class="p">)))</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SCons</span> <span class="n" style="color: #333;">x</span> <span class="n" style="color: #333;">xs</span></span>

</pre>

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79

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<pre style="margin: 0;">+<span id="LC79" class="line" lang="haskell">  <span class="n" style="color: #333;">sTof</span> <span class="kt" style="color: #458; font-weight: 600;">SNil</span>    <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Refl</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="80" 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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<pre style="margin: 0;">+<span id="LC80" class="line" lang="haskell">  <span class="n" style="color: #333;">sTof</span> <span class="kt" style="color: #458; font-weight: 600;">SCons</span><span class="p">{}</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Refl</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="81" 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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<pre style="margin: 0;">+<span id="LC81" class="line" lang="haskell">  <span class="n" style="color: #333;">sFot</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SL1</span> <span class="kt" style="color: #458; font-weight: 600;">SMkU1</span><span class="p">)</span>                        <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Refl</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="82" 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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<pre style="margin: 0;">+<span id="LC82" class="line" lang="haskell">  <span class="n" style="color: #333;">sFot</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SR1</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">SMkProduct</span> <span class="kt" style="color: #458; font-weight: 600;">SMkK1</span><span class="p">{}</span> <span class="kt" style="color: #458; font-weight: 600;">SMkK1</span><span class="p">{}))</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Refl</span></span></pre>

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<br>

</li>

<li id="84c0926a36030b90b99e4dd1e0fb7929228ea7d3">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#84c0926a36030b90b99e4dd1e0fb7929228ea7d3"><strong>testsuite/tests/simplCore/should_compile/T18747B.hs</strong></a>

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1

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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 ConstraintKinds #-}</span></span>

</pre>

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2

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<pre style="margin: 0;">+<span id="LC2" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE DataKinds #-}</span></span>

</pre>

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3

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<pre style="margin: 0;">+<span id="LC3" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE FlexibleInstances #-}</span></span>

</pre>

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4

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<pre style="margin: 0;">+<span id="LC4" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE GADTs #-}</span></span>

</pre>

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5

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<pre style="margin: 0;">+<span id="LC5" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE PolyKinds #-}</span></span>

</pre>

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6

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<pre style="margin: 0;">+<span id="LC6" class="line" lang="haskell"><span class="cp" style="color: #999; font-weight: 600;">{-# LANGUAGE ScopedTypeVariables #-}</span></span>

</pre>

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7

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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 TypeFamilies #-}</span></span>

</pre>

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8

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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 TypeOperators #-}</span></span>

</pre>

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9

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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 UndecidableInstances #-}</span></span>

</pre>

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10

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<pre style="margin: 0;">+<span id="LC10" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">module</span> <span class="nn" style="color: #555;">T18747B</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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11

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<pre style="margin: 0;">+<span id="LC11" class="line" lang="haskell"></span>

</pre>

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12

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<pre style="margin: 0;">+<span id="LC12" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Kind</span></span>

</pre>

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13

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<pre style="margin: 0;">+<span id="LC13" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Type.Equality</span></span>

</pre>

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14

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<pre style="margin: 0;">+<span id="LC14" class="line" lang="haskell"></span>

</pre>

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15

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<pre style="margin: 0;">+<span id="LC15" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="16" 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">

16

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<pre style="margin: 0;">+<span id="LC16" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="17" 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">

17

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<pre style="margin: 0;">+<span id="LC17" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="p">(</span><span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="18" 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">

18

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<pre style="margin: 0;">+<span id="LC18" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="n" style="color: #333;">k</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="19" 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">

19

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<pre style="margin: 0;">+<span id="LC19" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="20" 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">

20

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<pre style="margin: 0;">+<span id="LC20" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="p">(</span><span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">)</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="21" 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">

21

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<pre style="margin: 0;">+<span id="LC21" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">PromoteX</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="n" style="color: #333;">k</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="22" 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">

22

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<pre style="margin: 0;">+<span id="LC22" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="23" 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">

23

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<pre style="margin: 0;">+<span id="LC23" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="p">(</span><span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span><span class="p">)</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="24" 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">

24

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<pre style="margin: 0;">+<span id="LC24" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="n" style="color: #333;">family</span> <span class="kt" style="color: #458; font-weight: 600;">DemoteX</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</span><span class="p">)</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="n" style="color: #333;">k</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="25" 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">

25

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<pre style="margin: 0;">+<span id="LC25" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="26" 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">

26

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<pre style="margin: 0;">+<span id="LC26" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kt" style="color: #458; font-weight: 600;">SingKindX</span> <span class="p">(</span><span class="n" style="color: #333;">a</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">k</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;">PromoteX</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">DemoteX</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;">a</span><span class="p">)</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="27" 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">

27

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<pre style="margin: 0;">+<span id="LC27" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="0" 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="28" 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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<pre style="margin: 0;">+<span id="LC28" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">class</span> <span class="kt" style="color: #458; font-weight: 600;">SingKindX</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">SingKind</span> <span class="n" style="color: #333;">k</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="0" 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="29" 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">

29

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<pre style="margin: 0;">+<span id="LC29" class="line" lang="haskell">  <span class="n" style="color: #333;">toSing</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="n" style="color: #333;">k</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="n" style="color: #333;">k</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="30" 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="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC30" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="31" 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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<pre style="margin: 0;">+<span id="LC31" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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</td>

<td class="diff-line-num new new_line" data-linenumber="32" 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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<pre style="margin: 0;">+<span id="LC32" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Type</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="33" 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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<pre style="margin: 0;">+<span id="LC33" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">DemoteX</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;">Type</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="n" style="color: #333;">a</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="34" 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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<pre style="margin: 0;">+<span id="LC34" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">PromoteX</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;">Type</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="n" style="color: #333;">a</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="35" 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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<pre style="margin: 0;">+<span id="LC35" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC36" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC37" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="38" 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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<pre style="margin: 0;">+<span id="LC38" class="line" lang="haskell"></span>

</pre>

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<td class="diff-line-num new new_line" data-linenumber="39" 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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<pre style="margin: 0;">+<span id="LC39" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">Foo</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;">Type</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span> <span class="kt" style="color: #458; font-weight: 600;">MkFoo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC40" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC41" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">data</span> <span class="kt" style="color: #458; font-weight: 600;">SFoo</span> <span class="o" style="font-weight: 600;">::</span> <span class="n" style="color: #333;">forall</span> <span class="n" style="color: #333;">a</span><span class="o" style="font-weight: 600;">.</span> <span class="kt" style="color: #458; font-weight: 600;">Foo</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;">Type</span> <span class="kr" style="font-weight: 600;">where</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;">SMkFoo</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">SFoo</span> <span class="kt" style="color: #458; font-weight: 600;">MkFoo</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC43" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Sing</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SFoo</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC44" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC45" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Demote</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foo</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;">Foo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">DemoteX</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">type</span> <span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Promote</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foo</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;">Foo</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PromoteX</span> <span class="n" style="color: #333;">a</span><span class="p">)</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC47" class="line" lang="haskell"></span>

</pre>

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<pre style="margin: 0;">+<span id="LC48" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">SingKindX</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;">SingKind</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Foo</span> <span class="n" style="color: #333;">a</span><span class="p">)</span> <span class="kr" style="font-weight: 600;">where</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC49" class="line" lang="haskell">  <span class="n" style="color: #333;">toSing</span> <span class="kt" style="color: #458; font-weight: 600;">MkFoo</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">SomeSing</span> <span class="kt" style="color: #458; font-weight: 600;">SMkFoo</span></span>

</pre>

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<pre style="margin: 0;">+<span id="LC50" class="line" lang="haskell"></span></pre>

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<br>

</li>

<li id="fc07c260b75644727a8cdc1af5c861a44d4bfb5e">

<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/ebcc09687b8d84daf00987a466834a20a9831e7b...90fe5cffb0b0ba1ff86b8b9bf5299d0ed8437ad7#fc07c260b75644727a8cdc1af5c861a44d4bfb5e"><strong>testsuite/tests/simplCore/should_compile/all.T</strong></a>

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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -333,3 +333,6 @@ test('T18347', normal, compile, ['-dcore-lint -O'])</td>

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333

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<td class="diff-line-num new_line" data-linenumber="333" 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">

333

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<pre style="margin: 0;"> <span id="LC333" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18355</span><span class="p">',</span> <span class="p">[</span> <span class="nv" style="color: #008080;">grep_errmsg</span><span class="p">(</span><span class="nv" style="color: #008080;">r</span><span class="p">'</span><span class="s1" style="color: #d14;">OneShot</span><span class="p">')</span> <span class="p">],</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-O -ddump-simpl -dsuppress-uniques</span><span class="p">'])</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="334" 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">

334

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<td class="diff-line-num new_line" data-linenumber="334" 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">

334

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<pre style="margin: 0;"> <span id="LC334" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18399</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-dcore-lint -O</span><span class="p">'])</span></span>

</pre>

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<td class="diff-line-num old_line" data-linenumber="335" 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">

335

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<td class="diff-line-num new_line" data-linenumber="335" 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">

335

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<pre style="margin: 0;"> <span id="LC335" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18589</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">['</span><span class="s1" style="color: #d14;">-dcore-lint -O</span><span class="p">'])</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="336" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="336" 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">

336

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC336" class="line" lang="perl"></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="336" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="337" 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">

337

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<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">

<pre style="margin: 0;">+<span id="LC337" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18747A</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">[''])</span></span>

</pre>

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<td class="diff-line-num new old_line" data-linenumber="336" 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">

</td>

<td class="diff-line-num new new_line" data-linenumber="338" 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">

338

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<pre style="margin: 0;">+<span id="LC338" class="line" lang="perl"><span class="nv" style="color: #008080;">test</span><span class="p">('</span><span class="s1" style="color: #d14;">T18747B</span><span class="p">',</span> <span class="nv" style="color: #008080;">normal</span><span class="p">,</span> <span class="nv" style="color: #008080;">compile</span><span class="p">,</span> <span class="p">[''])</span></span></pre>

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