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<h3>
Krzysztof Gogolewski pushed to branch wip/fix-zipping
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/73d559136814e3ed9dcbab19ec4d746a7ee3173d">73d55913</a></strong>
<div>
<span>by Krzysztof Gogolewski</span>
<i>at 2019-05-21T08:41:40Z</i>
</div>
<pre class="commit-message" style="white-space: pre-wrap; margin: 0;">Fix missing unboxed tuple RuntimeReps (#16565)

Unboxed tuples and sums take extra RuntimeRep arguments,
which must be manually passed in a few places.
This was not done in deSugar/Check.

This error was hidden because zipping functions in TyCoRep
ignored lists with mismatching length. This is now fixed;
the lengths are now checked by calling zipEqual.

As suggested in #16565, I moved checking for isTyVar and
isCoVar to zipTyEnv and zipCoEnv.
</pre>
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<h4>4 changed files:</h4>
<ul>
<li class="file-stats">
<a href="#bd37d71fa68b0980d832d992b427fd6a6bdb891d">
compiler/deSugar/Check.hs
</a>
</li>
<li class="file-stats">
<a href="#88310e11ff3891efda62ffaa54c2830f1b147778">
compiler/types/TyCoRep.hs
</a>
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<li class="file-stats">
<a href="#02ab52057b25cd107220549e7027dd4c9a6ba32c">
compiler/types/TyCon.hs
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<a href="#7dc313da4c00f2541cb5e519a5e4a0eac7751a2a">
compiler/utils/Util.hs
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<h4>Changes:</h4>
<li id="bd37d71fa68b0980d832d992b427fd6a6bdb891d">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/73d559136814e3ed9dcbab19ec4d746a7ee3173d#bd37d71fa68b0980d832d992b427fd6a6bdb891d"><strong>compiler/deSugar/Check.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">@@ -43,6 +43,7 @@ import FastString</td>
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<pre style="margin: 0;"> <span id="LC43" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">DataCon</span></span>
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<pre style="margin: 0;"> <span id="LC44" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">PatSyn</span></span>
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<pre style="margin: 0;"> <span id="LC45" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">HscTypes</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">CompleteMatch</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">))</span></span>
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<pre style="margin: 0;">+<span id="LC46" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">BasicTypes</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Boxity</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">))</span></span>
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<pre style="margin: 0;"> <span id="LC47" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC48" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">DsMonad</span></span>
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<pre style="margin: 0;"> <span id="LC49" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">TcSimplify</span>    <span class="p">(</span><span class="nf" style="color: #900; font-weight: 600;">tcCheckSatisfiability</span><span class="p">)</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="1078" 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="1079" 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">@@ -1078,12 +1079,17 @@ translatePat fam_insts pat = case pat of</td>
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<pre style="margin: 0;"> <span id="LC1079" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">TuplePat</span> <span class="n" style="color: #333;">tys</span> <span class="n" style="color: #333;">ps</span> <span class="n" style="color: #333;">boxity</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="LC1080" class="line" lang="haskell">    <span class="n" style="color: #333;">tidy_ps</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">translatePatVec</span> <span class="n" style="color: #333;">fam_insts</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">unLoc</span> <span class="n" style="color: #333;">ps</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC1081" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">tuple_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="p">(</span><span class="n" style="color: #333;">tupleDataCon</span> <span class="n" style="color: #333;">boxity</span> <span class="p">(</span><span class="n" style="color: #333;">length</span> <span class="n" style="color: #333;">ps</span><span class="p">))</span></span>
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<pre style="margin: 0;">-<span id="LC1081" class="line" lang="haskell">    <span class="n" style="color: #333;">return</span> <span class="p">[</span><span class="n" style="color: #333;">vanillaConPattern</span> <span class="n" style="color: #333;">tuple_con</span> <span class="n" style="color: #333;">tys</span> <span class="p">(</span><span class="n" style="color: #333;">concat</span> <span class="n" style="color: #333;">tidy_ps</span><span class="p">)]</span></span>
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<pre style="margin: 0;">+<span id="LC1082" class="line" lang="haskell">        <span class="n" style="color: #333;">tys'</span> <span class="o" style="font-weight: 600;">=</span> <span class="kr" style="font-weight: 600;">case</span> <span class="n" style="color: #333;">boxity</span> <span class="kr" style="font-weight: 600;">of</span></span>
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<pre style="margin: 0;">+<span id="LC1083" class="line" lang="haskell">                 <span class="kt" style="color: #458; font-weight: 600;">Boxed</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">tys</span></span>
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<pre style="margin: 0;">+<span id="LC1084" class="line" lang="haskell">                 <span class="c1" style="color: #998; font-style: italic;">-- See Note [Unboxed tuple RuntimeRep vars] in TyCon</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1082" 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="1085" 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">
1085
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1085" class="line" lang="haskell">                 <span class="kt" style="color: #458; font-weight: 600;">Unboxed</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">getRuntimeRep</span> <span class="n" style="color: #333;">tys</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1082" 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="1086" 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">
1086
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1086" class="line" lang="haskell">    <span class="n" style="color: #333;">return</span> <span class="p">[</span><span class="n" style="color: #333;">vanillaConPattern</span> <span class="n" style="color: #333;">tuple_con</span> <span class="n" style="color: #333;">tys'</span> <span class="p">(</span><span class="n" style="color: #333;">concat</span> <span class="n" style="color: #333;">tidy_ps</span><span class="p">)]</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="1082" 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">
1082
</td>
<td class="diff-line-num new_line" data-linenumber="1087" 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">
1087
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1087" class="line" lang="haskell"></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="1083" 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">
1083
</td>
<td class="diff-line-num new_line" data-linenumber="1088" 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">
1088
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1088" class="line" lang="haskell">  <span class="kt" style="color: #458; font-weight: 600;">SumPat</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">p</span> <span class="n" style="color: #333;">alt</span> <span class="n" style="color: #333;">arity</span> <span class="o" style="font-weight: 600;">-></span> <span class="kr" style="font-weight: 600;">do</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="1084" 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">
1084
</td>
<td class="diff-line-num new_line" data-linenumber="1089" 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">
1089
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1089" class="line" lang="haskell">    <span class="n" style="color: #333;">tidy_p</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">translatePat</span> <span class="n" style="color: #333;">fam_insts</span> <span class="p">(</span><span class="n" style="color: #333;">unLoc</span> <span class="n" style="color: #333;">p</span><span class="p">)</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1085" 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">
1085
</td>
<td class="diff-line-num new_line" data-linenumber="1090" 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">
1090
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1090" class="line" lang="haskell">    <span class="kr" style="font-weight: 600;">let</span> <span class="n" style="color: #333;">sum_con</span> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">RealDataCon</span> <span class="p">(</span><span class="n" style="color: #333;">sumDataCon</span> <span class="n" style="color: #333;">alt</span> <span class="n" style="color: #333;">arity</span><span class="p">)</span></span>
</pre>
</td>
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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="1086" 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">
1086
</td>
<td class="diff-line-num new_line old" data-linenumber="1091" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC1086" class="line" lang="haskell">    <span class="n" style="color: #333;">return</span> <span class="p">[</span><span class="n" style="color: #333;">vanillaConPattern</span> <span class="n" style="color: #333;">sum_con</span> <span class="n" style="color: #333;">ty</span> <span class="n" style="color: #333;">tidy_p</span><span class="p">]</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1087" 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="1091" 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">
1091
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1091" class="line" lang="haskell">    <span class="c1" style="color: #998; font-style: italic;">-- See Note [Unboxed tuple RuntimeRep vars] in TyCon</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="1087" 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="1092" 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">
1092
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC1092" class="line" lang="haskell">    <span class="n" style="color: #333;">return</span> <span class="p">[</span><span class="n" style="color: #333;">vanillaConPattern</span> <span class="n" style="color: #333;">sum_con</span> <span class="p">(</span><span class="n" style="color: #333;">map</span> <span class="n" style="color: #333;">getRuntimeRep</span> <span class="n" style="color: #333;">ty</span> <span class="o" style="font-weight: 600;">++</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="n" style="color: #333;">tidy_p</span><span class="p">]</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="1087" 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">
1087
</td>
<td class="diff-line-num new_line" data-linenumber="1093" 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">
1093
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC1093" class="line" lang="haskell"></span>
</pre>
</td>
</tr>
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<td class="diff-line-num old_line" data-linenumber="1088" 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">
1088
</td>
<td class="diff-line-num new_line" data-linenumber="1094" 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">
1094
</td>
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<pre style="margin: 0;"> <span id="LC1094" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- --------------------------------------------------------------------------</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="1089" 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">
1089
</td>
<td class="diff-line-num new_line" data-linenumber="1095" 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">
1095
</td>
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<pre style="margin: 0;"> <span id="LC1095" class="line" lang="haskell">  <span class="c1" style="color: #998; font-style: italic;">-- Not supposed to happen</span></span>
</pre>
</td>
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</table>
<br>
</li>
<li id="88310e11ff3891efda62ffaa54c2830f1b147778">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/73d559136814e3ed9dcbab19ec4d746a7ee3173d#88310e11ff3891efda62ffaa54c2830f1b147778"><strong>compiler/types/TyCoRep.hs</strong></a>
<hr>
<table class="code white" style="font-family: monospace; font-size: 90%;" bgcolor="#fff" width="100%" cellpadding="0" cellspacing="0">
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2963" 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="2963" 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">@@ -2963,39 +2963,29 @@ unionTCvSubst (TCvSubst in_scope1 tenv1 cenv1) (TCvSubst in_scope2 tenv2 cenv2)</td>
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<td class="diff-line-num old_line" data-linenumber="2963" 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">
2963
</td>
<td class="diff-line-num new_line" data-linenumber="2963" 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">
2963
</td>
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<pre style="margin: 0;"> <span id="LC2963" class="line" lang="haskell"></span>
</pre>
</td>
</tr>
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<td class="diff-line-num old_line" data-linenumber="2964" 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">
2964
</td>
<td class="diff-line-num new_line" data-linenumber="2964" 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">
2964
</td>
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<pre style="margin: 0;"> <span id="LC2964" class="line" lang="haskell"><span class="cd">-- | Generates the in-scope set for the 'TCvSubst' from the types in the incoming</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="2965" 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">
2965
</td>
<td class="diff-line-num new_line" data-linenumber="2965" 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">
2965
</td>
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<pre style="margin: 0;"> <span id="LC2965" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- environment. No CoVars, please!</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2966" 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">
2966
</td>
<td class="diff-line-num new_line old" data-linenumber="2966" 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="LC2966" class="line" lang="haskell"><span class="n" style="color: #333;">zipTvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyVar</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;">TCvSubst</span></span>
</pre>
</td>
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<pre style="margin: 0;">+<span id="LC2966" class="line" lang="haskell"><span class="n" style="color: #333;">zipTvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">HasDebugCallStack</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=></span></span><span class="idiff right"> </span><span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyVar</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;">TCvSubst</span></span>
</pre>
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2967
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<td class="diff-line-num new_line" data-linenumber="2967" 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">
2967
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<pre style="margin: 0;"> <span id="LC2967" class="line" lang="haskell"><span class="n" style="color: #333;">zipTvSubst</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2968" 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">
2968
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<td class="diff-line-num new_line old" data-linenumber="2968" 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="LC2968" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugIsOn</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2969" 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">
2969
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<td class="diff-line-num new_line old" data-linenumber="2968" 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="LC2969" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">neLength</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2970" 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="2968" 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="LC2970" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprTrace</span> <span class="s" style="color: #d14;">"zipTvSubst"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tvs</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="n" style="color: #333;">emptyTCvSubst</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2971" 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">
2971
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<td class="diff-line-num new_line old" data-linenumber="2968" 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="LC2971" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2972" 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">
2972
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<td class="diff-line-num new_line" data-linenumber="2968" 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">
2968
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<pre style="margin: 0;"> <span id="LC2968" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkTvSubst</span> <span class="p">(</span><span class="n" style="color: #333;">mkInScopeSet</span> <span class="p">(</span><span class="n" style="color: #333;">tyCoVarsOfTypes</span> <span class="n" style="color: #333;">tys</span><span class="p">))</span> <span class="n" style="color: #333;">tenv</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2973" 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">
2973
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<td class="diff-line-num new_line" data-linenumber="2969" 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">
2969
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<pre style="margin: 0;"> <span id="LC2969" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2974" 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">
2974
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<td class="diff-line-num new_line" data-linenumber="2970" 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">
2970
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<pre style="margin: 0;"> <span id="LC2970" class="line" lang="haskell">    <span class="n" style="color: #333;">tenv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">zipTyEnv</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
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2975
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<td class="diff-line-num new_line" data-linenumber="2971" 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">
2971
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<pre style="margin: 0;"> <span id="LC2971" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2976" 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">
2976
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<td class="diff-line-num new_line" data-linenumber="2972" 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">
2972
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<pre style="margin: 0;"> <span id="LC2972" class="line" lang="haskell"><span class="cd">-- | Generates the in-scope set for the 'TCvSubst' from the types in the incoming</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2977" 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">
2977
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<td class="diff-line-num new_line" data-linenumber="2973" 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">
2973
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<pre style="margin: 0;"> <span id="LC2973" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- environment.  No TyVars, please!</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2978" 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">
2978
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<td class="diff-line-num new_line old" data-linenumber="2974" 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="LC2978" class="line" lang="haskell"><span class="n" style="color: #333;">zipCvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoVar</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;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="2979" 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="2974" 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">
2974
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<pre style="margin: 0;">+<span id="LC2974" class="line" lang="haskell"><span class="n" style="color: #333;">zipCvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">HasDebugCallStack</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=></span></span><span class="idiff right"> </span><span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoVar</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;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="2979" 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">
2979
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<td class="diff-line-num new_line" data-linenumber="2975" 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">
2975
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<pre style="margin: 0;"> <span id="LC2975" class="line" lang="haskell"><span class="n" style="color: #333;">zipCvSubst</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="2980" 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">
2980
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<td class="diff-line-num new_line old" data-linenumber="2976" 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="LC2980" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugIsOn</span></span>
</pre>
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2981
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<pre style="margin: 0;">-<span id="LC2981" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span> <span class="o" style="font-weight: 600;">||</span> <span class="n" style="color: #333;">neLength</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2982" 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">
2982
</td>
<td class="diff-line-num new_line old" data-linenumber="2976" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2982" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprTrace</span> <span class="s" style="color: #d14;">"zipCvSubst"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cvs</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span> <span class="n" style="color: #333;">emptyTCvSubst</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2983" 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">
2983
</td>
<td class="diff-line-num new_line old" data-linenumber="2976" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2983" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
</pre>
</td>
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<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2984" 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">
2984
</td>
<td class="diff-line-num new_line" data-linenumber="2976" 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">
2976
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2976" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span> <span class="p">(</span><span class="n" style="color: #333;">mkInScopeSet</span> <span class="p">(</span><span class="n" style="color: #333;">tyCoVarsOfCos</span> <span class="n" style="color: #333;">cos</span><span class="p">))</span> <span class="n" style="color: #333;">emptyTvSubstEnv</span> <span class="n" style="color: #333;">cenv</span></span>
</pre>
</td>
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<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2985" 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">
2985
</td>
<td class="diff-line-num new_line" data-linenumber="2977" 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">
2977
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2977" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2986" 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">
2986
</td>
<td class="diff-line-num new_line" data-linenumber="2978" 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">
2978
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2978" class="line" lang="haskell">    <span class="n" style="color: #333;">cenv</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">zipCoEnv</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2987" 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">
2987
</td>
<td class="diff-line-num new_line" data-linenumber="2979" 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">
2979
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2979" class="line" lang="haskell"></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2988" 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">
2988
</td>
<td class="diff-line-num new_line old" data-linenumber="2980" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2988" class="line" lang="haskell"><span class="n" style="color: #333;">zipTCvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyCoVar</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;">TCvSubst</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="2989" 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="2980" 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">
2980
</td>
<td class="line_content new" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#ecfdf0">
<pre style="margin: 0;">+<span id="LC2980" class="line" lang="haskell"><span class="n" style="color: #333;">zipTCvSubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">HasDebugCallStack</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=></span></span><span class="idiff right"> </span><span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyCoVar</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;">TCvSubst</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2989" 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">
2989
</td>
<td class="diff-line-num new_line" data-linenumber="2981" 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">
2981
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2981" class="line" lang="haskell"><span class="n" style="color: #333;">zipTCvSubst</span> <span class="n" style="color: #333;">tcvs</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2990" 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">
2990
</td>
<td class="diff-line-num new_line old" data-linenumber="2982" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2990" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugIsOn</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2991" 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">
2991
</td>
<td class="diff-line-num new_line old" data-linenumber="2982" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2991" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">neLength</span> <span class="n" style="color: #333;">tcvs</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2992" 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">
2992
</td>
<td class="diff-line-num new_line old" data-linenumber="2982" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2992" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprTrace</span> <span class="s" style="color: #d14;">"zipTCvSubst"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tcvs</span> <span class="o" style="font-weight: 600;">$$</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="n" style="color: #333;">emptyTCvSubst</span></span>
</pre>
</td>
</tr>
<tr class="line_holder old" id="" style="line-height: 1.6;">
<td class="diff-line-num old old_line" data-linenumber="2993" 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">
2993
</td>
<td class="diff-line-num new_line old" data-linenumber="2982" 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">
 
</td>
<td class="line_content old" style="padding-left: 0.5em; padding-right: 0.5em;" bgcolor="#fbe9eb">
<pre style="margin: 0;">-<span id="LC2993" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2994" 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">
2994
</td>
<td class="diff-line-num new_line" data-linenumber="2982" 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">
2982
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2982" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="n" style="color: #333;">tcvs</span> <span class="n" style="color: #333;">tys</span> <span class="p">(</span><span class="n" style="color: #333;">mkEmptyTCvSubst</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">mkInScopeSet</span> <span class="p">(</span><span class="n" style="color: #333;">tyCoVarsOfTypes</span> <span class="n" style="color: #333;">tys</span><span class="p">))</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2995" 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">
2995
</td>
<td class="diff-line-num new_line" data-linenumber="2983" 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">
2983
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC2983" class="line" lang="haskell">  <span class="kr" style="font-weight: 600;">where</span> <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyCoVar</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;">TCvSubst</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span></span>
</pre>
</td>
</tr>
<tr class="line_holder" id="" style="line-height: 1.6;">
<td class="diff-line-num old_line" data-linenumber="2996" 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">
2996
</td>
<td class="diff-line-num new_line" data-linenumber="2984" 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">
2984
</td>
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<pre style="margin: 0;"> <span id="LC2984" class="line" lang="haskell">        <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="p">(</span><span class="n" style="color: #333;">tv</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">tvs</span><span class="p">)</span> <span class="p">(</span><span class="n" style="color: #333;">ty</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="n" style="color: #333;">subst</span></span>
</pre>
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2997
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2985
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<pre style="margin: 0;"> <span id="LC2985" class="line" lang="haskell">          <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="n" style="color: #333;">tvs</span> <span class="n" style="color: #333;">tys</span> <span class="p">(</span><span class="n" style="color: #333;">extendTCvSubst</span> <span class="n" style="color: #333;">subst</span> <span class="n" style="color: #333;">tv</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
</pre>
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2998
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<td class="diff-line-num new_line old" data-linenumber="2986" 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="LC2998" class="line" lang="haskell">        <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="kr" style="font-weight: 600;">_</span> <span class="kr" style="font-weight: 600;">_</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">subst</span> <span class="c1" style="color: #998; font-style: italic;">-- empty case</span></span>
</pre>
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2986
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<pre style="margin: 0;">+<span id="LC2986" class="line" lang="haskell">        <span class="n" style="color: #333;">zip_tcvsubst</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span> <span class="n" style="color: #333;">subst</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">subst</span> <span class="c1" style="color: #998; font-style: italic;">-- empty case</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="2999" 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="2987" 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">
2987
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<pre style="margin: 0;">+<span id="LC2987" class="line" lang="haskell">        <span class="n" style="color: #333;">zip_tcvsubst</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="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprPanic</span> <span class="s" style="color: #d14;">"zipTCvSubst: length mismatch"</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="2999" 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="2988" 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">
2988
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<pre style="margin: 0;">+<span id="LC2988" class="line" lang="haskell">                                            <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tcvs</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
</pre>
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2999
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<td class="diff-line-num new_line" data-linenumber="2989" 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">
2989
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<pre style="margin: 0;"> <span id="LC2989" class="line" lang="haskell"></span>
</pre>
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3000
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<td class="diff-line-num new_line" data-linenumber="2990" 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">
2990
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<pre style="margin: 0;"> <span id="LC2990" class="line" lang="haskell"><span class="cd">-- | Generates the in-scope set for the 'TCvSubst' from the types in the</span></span>
</pre>
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3001
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<pre style="margin: 0;"> <span id="LC2991" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- incoming environment. No CoVars, please!</span></span>
</pre>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="3009" 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="2999" 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">@@ -3009,8 +2999,12 @@ mkTvSubstPrs prs =</td>
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3009
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<pre style="margin: 0;"> <span id="LC2999" class="line" lang="haskell">          <span class="n" style="color: #333;">and</span> <span class="p">[</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tv</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">isCoercionTy</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span></span>
</pre>
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3010
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<td class="diff-line-num new_line" data-linenumber="3000" 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">
3000
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<pre style="margin: 0;"> <span id="LC3000" class="line" lang="haskell">              <span class="o" style="font-weight: 600;">|</span> <span class="p">(</span><span class="n" style="color: #333;">tv</span><span class="p">,</span> <span class="n" style="color: #333;">ty</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">prs</span> <span class="p">]</span></span>
</pre>
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3011
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<td class="diff-line-num new_line" data-linenumber="3001" 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">
3001
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<pre style="margin: 0;"> <span id="LC3001" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="3012" 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="3002" 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="LC3012" class="line" lang="haskell"><span class="n" style="color: #333;">zipTyEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyVar</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;">TvSubstEnv</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3013" 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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3002
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<pre style="margin: 0;">+<span id="LC3002" class="line" lang="haskell"><span class="n" style="color: #333;">zipTyEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left">HasDebugCallStack</span></span><span class="idiff"> </span><span class="o" style="font-weight: 600;"><span class="idiff">=></span></span><span class="idiff right"> </span><span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">TyVar</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;">TvSubstEnv</span></span>
</pre>
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3013
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<td class="diff-line-num new_line" data-linenumber="3003" 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">
3003
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<pre style="margin: 0;"> <span id="LC3003" class="line" lang="haskell"><span class="n" style="color: #333;">zipTyEnv</span> <span class="n" style="color: #333;">tyvars</span> <span class="n" style="color: #333;">tys</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3014" 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="3004" 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">
3004
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<pre style="margin: 0;">+<span id="LC3004" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugIsOn</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3014" 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="3005" 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">
3005
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<pre style="margin: 0;">+<span id="LC3005" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">isTyVar</span> <span class="n" style="color: #333;">tyvars</span><span class="p">)</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="3014" 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="3006" 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">
3006
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<pre style="margin: 0;">+<span id="LC3006" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprPanic</span> <span class="s" style="color: #d14;">"zipTyEnv"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tyvars</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="3014" 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="3007" 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">
3007
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<pre style="margin: 0;">+<span id="LC3007" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="3014" 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">
3014
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<td class="diff-line-num new_line" data-linenumber="3008" 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">
3008
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<pre style="margin: 0;"> <span id="LC3008" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">ASSERT</span><span class="p">(</span> <span class="n" style="color: #333;">all</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="o" style="font-weight: 600;">.</span> <span class="n" style="color: #333;">isCoercionTy</span><span class="p">)</span> <span class="n" style="color: #333;">tys</span> <span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3015" 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">
3015
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<td class="diff-line-num new_line" data-linenumber="3009" 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">
3009
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<pre style="margin: 0;"> <span id="LC3009" class="line" lang="haskell">    <span class="n" style="color: #333;">mkVarEnv</span> <span class="p">(</span><span class="n" style="color: #333;">zipEqual</span> <span class="s" style="color: #d14;">"zipTyEnv"</span> <span class="n" style="color: #333;">tyvars</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3016" 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">
3016
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<td class="diff-line-num new_line" data-linenumber="3010" 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">
3010
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<pre style="margin: 0;"> <span id="LC3010" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- There used to be a special case for when</span></span>
</pre>
</td>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="3026" 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="3020" 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">@@ -3026,8 +3020,13 @@ zipTyEnv tyvars tys</td>
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<td class="diff-line-num old_line" data-linenumber="3026" 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">
3026
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<td class="diff-line-num new_line" data-linenumber="3020" 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">
3020
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<pre style="margin: 0;"> <span id="LC3020" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">--</span></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="3027" 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">
3027
</td>
<td class="diff-line-num new_line" data-linenumber="3021" 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">
3021
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<pre style="margin: 0;"> <span id="LC3021" class="line" lang="haskell">        <span class="c1" style="color: #998; font-style: italic;">-- Simplest fix is to nuke the "optimisation"</span></span>
</pre>
</td>
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<td class="diff-line-num old_line" data-linenumber="3028" 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">
3028
</td>
<td class="diff-line-num new_line" data-linenumber="3022" 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">
3022
</td>
<td class="line_content" style="padding-left: 0.5em; padding-right: 0.5em;">
<pre style="margin: 0;"> <span id="LC3022" class="line" lang="haskell"></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="3029" 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">
3029
</td>
<td class="diff-line-num new_line old" data-linenumber="3023" 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="LC3029" class="line" lang="haskell"><span class="n" style="color: #333;">zipCoEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoVar</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;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CvSubstEnv</span></span>
</pre>
</td>
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<td class="diff-line-num old old_line" data-linenumber="3030" 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">
3030
</td>
<td class="diff-line-num new_line old" data-linenumber="3023" 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="LC3030" class="line" lang="haskell"><span class="n" style="color: #333;">zipCoEnv</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVarEnv</span> <span class="p">(</span><span class="n" style="color: #333;">zipEqual</span> <span class="s" style="color: #d14;">"zipCoEnv"</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
</pre>
</td>
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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="3031" 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="3023" 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">
3023
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<pre style="margin: 0;">+<span id="LC3023" class="line" lang="haskell"><span class="n" style="color: #333;">zipCoEnv</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">HasDebugCallStack</span> <span class="o" style="font-weight: 600;">=></span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">CoVar</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;">Coercion</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">CvSubstEnv</span></span>
</pre>
</td>
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<td class="diff-line-num new old_line" data-linenumber="3031" 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="3024" 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">
3024
</td>
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<pre style="margin: 0;">+<span id="LC3024" class="line" lang="haskell"><span class="n" style="color: #333;">zipCoEnv</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span></span>
</pre>
</td>
</tr>
<tr class="line_holder new" id="" style="line-height: 1.6;">
<td class="diff-line-num new old_line" data-linenumber="3031" 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="3025" 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">
3025
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<pre style="margin: 0;">+<span id="LC3025" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">debugIsOn</span></span>
</pre>
</td>
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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="3031" 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="3026" 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">
3026
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<pre style="margin: 0;">+<span id="LC3026" class="line" lang="haskell">  <span class="p">,</span> <span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">all</span> <span class="n" style="color: #333;">isCoVar</span> <span class="n" style="color: #333;">cvs</span><span class="p">)</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="3031" 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="3027" 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">
3027
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<pre style="margin: 0;">+<span id="LC3027" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">pprPanic</span> <span class="s" style="color: #d14;">"zipCoEnv"</span> <span class="p">(</span><span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cvs</span> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
</pre>
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<pre style="margin: 0;">+<span id="LC3028" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">|</span> <span class="n" style="color: #333;">otherwise</span></span>
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<pre style="margin: 0;">+<span id="LC3029" class="line" lang="haskell">  <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">mkVarEnv</span> <span class="p">(</span><span class="n" style="color: #333;">zipEqual</span> <span class="s" style="color: #d14;">"zipCoEnv"</span> <span class="n" style="color: #333;">cvs</span> <span class="n" style="color: #333;">cos</span><span class="p">)</span></span>
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<pre style="margin: 0;"> <span id="LC3030" class="line" lang="haskell"></span>
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3032
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<pre style="margin: 0;"> <span id="LC3031" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">instance</span> <span class="kt" style="color: #458; font-weight: 600;">Outputable</span> <span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span> <span class="kr" style="font-weight: 600;">where</span></span>
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3033
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<pre style="margin: 0;"> <span id="LC3032" class="line" lang="haskell">  <span class="n" style="color: #333;">ppr</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">TCvSubst</span> <span class="n" style="color: #333;">ins</span> <span class="n" style="color: #333;">tenv</span> <span class="n" style="color: #333;">cenv</span><span class="p">)</span></span>
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</li>
<li id="02ab52057b25cd107220549e7027dd4c9a6ba32c">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/73d559136814e3ed9dcbab19ec4d746a7ee3173d#02ab52057b25cd107220549e7027dd4c9a6ba32c"><strong>compiler/types/TyCon.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">@@ -358,13 +358,27 @@ Note [Unboxed tuple RuntimeRep vars]</td>
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<pre style="margin: 0;"> <span id="LC358" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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<pre style="margin: 0;"> <span id="LC359" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The contents of an unboxed tuple may have any representation. Accordingly,</span></span>
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<pre style="margin: 0;"> <span id="LC360" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">the kind of the unboxed tuple constructor is runtime-representation</span></span>
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<pre style="margin: 0;">-<span id="LC361" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">polymorphic. For example,</span></span>
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<pre style="margin: 0;">+<span id="LC361" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">polymorphic.</span></span>
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<pre style="margin: 0;">+<span id="LC362" class="line" lang="haskell"></span>
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<pre style="margin: 0;">+<span id="LC363" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Type constructor (2 kind arguments)</span></span>
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<pre style="margin: 0;">+<span id="LC364" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   (#,#) :: forall (q :: RuntimeRep) (r :: RuntimeRep).</span></span>
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<pre style="margin: 0;">+<span id="LC365" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">                   TYPE q -> TYPE r -> TYPE (TupleRep [q, r])</span></span>
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<pre style="margin: 0;">+<span id="LC366" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Data constructor (4 type arguments)</span></span>
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<pre style="margin: 0;">+<span id="LC367" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   (#,#) :: forall (q :: RuntimeRep) (r :: RuntimeRep)</span></span>
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<pre style="margin: 0;">+<span id="LC368" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">                   (a :: TYPE q) (b :: TYPE r). a -> b -> (# a, b #)</span></span>
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<pre style="margin: 0;">+<span id="LC369" class="line" lang="haskell"></span>
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370
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<pre style="margin: 0;">+<span id="LC370" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">These extra tyvars (q and r) cause some delicate processing around tuples,</span></span>
</pre>
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371
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<pre style="margin: 0;">+<span id="LC371" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">where we need to manually insert RuntimeRep arguments.</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="372" 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">
372
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<pre style="margin: 0;">+<span id="LC372" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">The same situation happens with unboxed sums: each alternative</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="373" 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">
373
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<pre style="margin: 0;">+<span id="LC373" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">has its own RuntimeRep.</span></span>
</pre>
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<td class="diff-line-num new old_line" data-linenumber="362" 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="374" 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">
374
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<pre style="margin: 0;">+<span id="LC374" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">For boxed tuples, there is no levity polymorphism, and therefore</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="375" 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">
375
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<pre style="margin: 0;">+<span id="LC375" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">we add RuntimeReps only for the unboxed version.</span></span>
</pre>
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376
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<pre style="margin: 0;">+<span id="LC376" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="377" 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">
377
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<pre style="margin: 0;">+<span id="LC377" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Type constructor (no kind arguments)</span></span>
</pre>
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<td class="diff-line-num new new_line" data-linenumber="378" 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">
378
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<pre style="margin: 0;">+<span id="LC378" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   (,) :: Type -> Type -> Type</span></span>
</pre>
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379
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<pre style="margin: 0;">+<span id="LC379" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Data constructor (2 type arguments)</span></span>
</pre>
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380
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<pre style="margin: 0;">+<span id="LC380" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   (,) :: forall a b. a -> b -> (a, b)</span></span>
</pre>
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362
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381
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<pre style="margin: 0;"> <span id="LC381" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="363" 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">
363
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<td class="diff-line-num new_line old" data-linenumber="382" 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="LC363" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">   (#,#) :: forall (q :: RuntimeRep) (r :: RuntimeRep). TYPE q -> TYPE r -> #</span></span>
</pre>
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364
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<td class="diff-line-num new_line old" data-linenumber="382" 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="LC364" class="line" lang="haskell"></span>
</pre>
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365
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<td class="diff-line-num new_line old" data-linenumber="382" 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="LC365" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">These extra tyvars (v and w) cause some delicate processing around tuples,</span></span>
</pre>
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366
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<td class="diff-line-num new_line old" data-linenumber="382" 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="LC366" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">where we used to be able to assume that the tycon arity and the</span></span>
</pre>
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367
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<td class="diff-line-num new_line old" data-linenumber="382" 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="LC367" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">datacon arity were the same.</span></span>
</pre>
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368
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382
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<pre style="margin: 0;"> <span id="LC382" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="369" 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">
369
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<td class="diff-line-num new_line" data-linenumber="383" 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="LC383" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">Note [Injective type families]</span></span>
</pre>
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370
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<td class="diff-line-num new_line" data-linenumber="384" 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">
384
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<pre style="margin: 0;"> <span id="LC384" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
</pre>
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<li id="7dc313da4c00f2541cb5e519a5e4a0eac7751a2a">
<a href="https://gitlab.haskell.org/ghc/ghc/commit/73d559136814e3ed9dcbab19ec4d746a7ee3173d#7dc313da4c00f2541cb5e519a5e4a0eac7751a2a"><strong>compiler/utils/Util.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">@@ -35,7 +35,7 @@ module Util (</td>
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<pre style="margin: 0;"> <span id="LC35" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">lengthExceeds</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">lengthIs</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">lengthIsNot</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC36" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">lengthAtLeast</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">lengthAtMost</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">lengthLessThan</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC37" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">listLengthCmp</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">atLength</span><span class="p">,</span></span>
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<pre style="margin: 0;">-<span id="LC38" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">equalLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;"><span class="idiff left">neLength</span></span><span class="p"><span class="idiff">,</span></span><span class="idiff right"> </span><span class="nf" style="color: #900; font-weight: 600;">compareLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">leLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ltLength</span><span class="p">,</span></span>
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<pre style="margin: 0;">+<span id="LC38" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">equalLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">compareLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">leLength</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">ltLength</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC39" class="line" lang="haskell"></span>
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<pre style="margin: 0;"> <span id="LC40" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">isSingleton</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">only</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">singleton</span><span class="p">,</span></span>
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<pre style="margin: 0;"> <span id="LC41" class="line" lang="haskell">        <span class="nf" style="color: #900; font-weight: 600;">notNull</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">snocView</span><span class="p">,</span></span>
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<td class="line_content match " style="padding-left: 0.5em; padding-right: 0.5em; color: rgba(0,0,0,0.3);" bgcolor="#fafafa">@@ -535,12 +535,6 @@ equalLength []     []     = True</td>
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<pre style="margin: 0;"> <span id="LC535" class="line" lang="haskell"><span class="n" style="color: #333;">equalLength</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">equalLength</span> <span class="n" style="color: #333;">xs</span> <span class="n" style="color: #333;">ys</span></span>
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<pre style="margin: 0;"> <span id="LC536" class="line" lang="haskell"><span class="n" style="color: #333;">equalLength</span> <span class="kr" style="font-weight: 600;">_</span>      <span class="kr" style="font-weight: 600;">_</span>      <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<pre style="margin: 0;"> <span id="LC537" class="line" lang="haskell"></span>
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<pre style="margin: 0;">-<span id="LC538" class="line" lang="haskell"><span class="n" style="color: #333;">neLength</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="p">[</span><span class="n" style="color: #333;">b</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Bool</span></span>
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<pre style="margin: 0;">-<span id="LC539" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- ^ True if length xs /= length ys</span></span>
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<pre style="margin: 0;">-<span id="LC540" class="line" lang="haskell"><span class="n" style="color: #333;">neLength</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>     <span class="kt" style="color: #458; font-weight: 600;">[]</span>     <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<pre style="margin: 0;">-<span id="LC541" class="line" lang="haskell"><span class="n" style="color: #333;">neLength</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">neLength</span> <span class="n" style="color: #333;">xs</span> <span class="n" style="color: #333;">ys</span></span>
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542
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<td class="diff-line-num new_line old" data-linenumber="538" 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="LC542" class="line" lang="haskell"><span class="n" style="color: #333;">neLength</span> <span class="kr" style="font-weight: 600;">_</span>      <span class="kr" style="font-weight: 600;">_</span>      <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">True</span></span>
</pre>
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<td class="diff-line-num old old_line" data-linenumber="543" 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">
543
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<td class="diff-line-num new_line old" data-linenumber="538" 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="LC543" class="line" lang="haskell"></span>
</pre>
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<td class="diff-line-num old_line" data-linenumber="544" 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">
544
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<td class="diff-line-num new_line" data-linenumber="538" 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">
538
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<pre style="margin: 0;"> <span id="LC538" class="line" lang="haskell"><span class="n" style="color: #333;">compareLength</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="p">[</span><span class="n" style="color: #333;">b</span><span class="p">]</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">Ordering</span></span>
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545
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<td class="diff-line-num new_line" data-linenumber="539" 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">
539
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<pre style="margin: 0;"> <span id="LC539" class="line" lang="haskell"><span class="n" style="color: #333;">compareLength</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span>     <span class="kt" style="color: #458; font-weight: 600;">[]</span>     <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">EQ</span></span>
</pre>
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546
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<td class="diff-line-num new_line" data-linenumber="540" 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">
540
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<pre style="margin: 0;"> <span id="LC540" class="line" lang="haskell"><span class="n" style="color: #333;">compareLength</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">xs</span><span class="p">)</span> <span class="p">(</span><span class="kr" style="font-weight: 600;">_</span><span class="o" style="font-weight: 600;">:</span><span class="n" style="color: #333;">ys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">compareLength</span> <span class="n" style="color: #333;">xs</span> <span class="n" style="color: #333;">ys</span></span>
</pre>
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