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Marge Bot pushed to branch master
at <a href="https://gitlab.haskell.org/ghc/ghc" style="color: #1068bf;">Glasgow Haskell Compiler / GHC</a>
</h3>
<h4 style="margin-top: 10px; margin-bottom: 10px;">
Commits:
</h4>
<ul>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/488d36311709f958f6c759952fc8379b231e69ca" style="color: #1068bf;">488d3631</a></strong>
<div>
<span>by Bodigrim</span>
<i>at 2022-10-19T10:47:52-04:00</i>
</div>
<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>More precise types for fields of OverlappingInstances and UnsafeOverlap in TcSolverReportMsg
It's clear from asserts in `GHC.Tc.Errors` that `overlappingInstances_matches`
and `unsafeOverlapped` are supposed to be non-empty, and `unsafeOverlap_matches`
contains a single instance, but these invariants are immediately lost afterwards
and not encoded in types. This patch enforces the invariants by pattern matching
and makes types more precise, avoiding asserts and partial functions such as `head`.
</pre>
</li>
<li>
<strong style="font-weight: bold;"><a href="https://gitlab.haskell.org/ghc/ghc/-/commit/607ce263fd8304d02c24e997abc0d17ead1cb19b" style="color: #1068bf;">607ce263</a></strong>
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<span>by sheaf</span>
<i>at 2022-10-19T10:47:52-04:00</i>
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<pre class="commit-message" style='white-space: pre-wrap; display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: #fafafa; border-radius: 2px; margin: 0; padding: 8px 12px; border: 1px solid #dbdbdb;'>Rename unsafeOverlap_matches -> unsafeOverlap_match in UnsafeOverlap</pre>
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<h4 style="margin-top: 10px; margin-bottom: 10px;">3 changed files:</h4>
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<li class="file-stats">
<a href="#e4b9d5e9d2de37561bfd06a2c97a5c924a1bab76" style="color: #1068bf;">
compiler/GHC/Tc/Errors.hs
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<a href="#1dd9c7a6bbc222c976a6ec1c4b772232ae60f7e5" style="color: #1068bf;">
compiler/GHC/Tc/Errors/Ppr.hs
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<a href="#cdba811872892f235fe7059df1a6c538fba60816" style="color: #1068bf;">
compiler/GHC/Tc/Errors/Types.hs
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<h4 style="margin-top: 10px; margin-bottom: 10px;">Changes:</h4>
<li id="e4b9d5e9d2de37561bfd06a2c97a5c924a1bab76">
<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/c3732c6210972a992e1153b0667cf8abf0351acd...607ce263fd8304d02c24e997abc0d17ead1cb19b#e4b9d5e9d2de37561bfd06a2c97a5c924a1bab76" style="color: #1068bf;"><strong style="font-weight: bold;">compiler/GHC/Tc/Errors.hs</strong></a>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="83" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="83" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -83,6 +83,7 @@ import Data.Foldable ( toList )</td>
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<td class="old_line diff-line-num" data-linenumber="83" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
83
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<td class="new_line diff-line-num" data-linenumber="83" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
83
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC83" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Function</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">on</span> <span class="p">)</span></span>
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<td class="old_line diff-line-num" data-linenumber="84" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
84
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<td class="new_line diff-line-num" data-linenumber="84" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
84
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC84" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.List</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">partition</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">sort</span><span class="p">,</span> <span class="nf" style="color: #900; font-weight: 600;">sortBy</span> <span class="p">)</span></span>
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<td class="old_line diff-line-num" data-linenumber="85" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
85
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<td class="new_line diff-line-num" data-linenumber="85" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
85
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC85" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.List.NonEmpty</span> <span class="p">(</span> <span class="kt" style="color: #458; font-weight: 600;">NonEmpty</span><span class="p">(</span><span class="o" style="font-weight: 600;">..</span><span class="p">)</span> <span class="p">)</span></span>
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<td class="old_line diff-line-num new" data-linenumber="86" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="86" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
86
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC86" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Data.List.NonEmpty</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">NE</span></span>
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86
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<td class="new_line diff-line-num" data-linenumber="87" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
87
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC87" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="nn" style="color: #555;">Data.Ord</span> <span class="p">(</span> <span class="nf" style="color: #900; font-weight: 600;">comparing</span> <span class="p">)</span></span>
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<td class="old_line diff-line-num" data-linenumber="87" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
87
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<td class="new_line diff-line-num" data-linenumber="88" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
88
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC88" class="line" lang="haskell"><span class="kr" style="font-weight: 600;">import</span> <span class="k" style="font-weight: 600;">qualified</span> <span class="nn" style="color: #555;">Data.Semigroup</span> <span class="k" style="font-weight: 600;">as</span> <span class="n" style="color: #333;">S</span></span>
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88
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89
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC89" class="line" lang="haskell"></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -2203,26 +2204,24 @@ mkDictErr ctxt orig_items</td>
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<td class="old_line diff-line-num" data-linenumber="2203" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2203
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<td class="new_line diff-line-num" data-linenumber="2204" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2204
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2204" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;">-- and the result of evaluating ...".</span></span>
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2204
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<td class="new_line diff-line-num" data-linenumber="2205" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2205
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2205" class="line" lang="haskell"><span class="n" style="color: #333;">mk_dict_err</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">HasCallStack</span> <span class="o" style="font-weight: 600;">=></span> <span class="kt" style="color: #458; font-weight: 600;">SolverReportErrCtxt</span> <span class="o" style="font-weight: 600;">-></span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">ErrorItem</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">ClsInstLookupResult</span><span class="p">)</span></span>
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2205
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<td class="new_line diff-line-num" data-linenumber="2206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2206
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2206" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="kt" style="color: #458; font-weight: 600;">TcSolverReportMsg</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2206" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2206
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2206" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left deletion" style="background-color: #fac5cd;">-- Report an overlap error if this</span> c<span class="idiff deletion" style="background-color: #fac5cd;">l</span>as<span class="idiff right deletion" style="background-color: #fac5cd;">s constraint results</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2207
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2207" class="line" lang="haskell"><span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right deletion" style="background-color: #fac5cd;">-- from an overlap (returning Left clas), otherwise return (Right pred)</span></span></span>
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2208
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2208" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left deletion" style="background-color: #fac5cd;">mk_dict_err</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">ctxt</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">(</span></span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">item</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">(</span></span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">matches</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">unifiers</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">unsafe_overlapped</span></span><span class="p"><span class="idiff right deletion" style="background-color: #fac5cd;">))</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2209
</td>
<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2209" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">|</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">null</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">matches</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right deletion" style="background-color: #fac5cd;">-- No matches but perhaps several unifier</span>s</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2210
</td>
<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2210" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">=</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="kr" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">do</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">{</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">(</span></span><span class="kr" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">_</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">rel_binds</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">item</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">)</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;"><-</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">relevantBindings</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">True</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">ctxt</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">item</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2211
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2211" class="line" lang="haskell"> <span class="idiff left deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">;</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">candidate_insts</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;"><-</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">get_candidate_instances</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2212
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2212" class="line" lang="haskell"><span class="idiff left deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">;</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">(</span></span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">imp_errs</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">,</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">field_suggestions</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">)</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;"><-</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">record_field_suggestions</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2213" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2213
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2213" class="line" lang="haskell"> <span class="idiff left deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">;</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">return</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">(</span></span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">cannot_resolve_msg</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">item</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">candidate_insts</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">rel_binds</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">imp_errs</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">field_suggestions</span></span><span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">)</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="p"><span class="idiff right deletion" style="background-color: #fac5cd;">}</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2214" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2214
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2214" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="2215" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2215
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2215" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">|</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">null</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">unsafe_overlapped</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right deletion" style="background-color: #fac5cd;">-- Some matches => overlap errors</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2216" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2216
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2216" class="line" lang="haskell"><span class="idiff left deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">=</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">return</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">$</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">overlap_msg</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2217" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2217
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2217" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="2218" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2218
</td>
<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2218" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">|</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">otherwise</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="2219" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2219
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<td class="new_line diff-line-num old" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2219" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">=</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">return</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="o" style="font-weight: 600;"><span class="idiff deletion" style="background-color: #fac5cd;">$</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff right deletion" style="background-color: #fac5cd;">safe_haskell_msg</span></span></span>
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<td class="old_line diff-line-num new" data-linenumber="2220" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="2207" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2207
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2207" class="line" lang="haskell"><span class="n" style="color: #333;"><span class="idiff left addition" style="background-color: #c7f0d2;">mk_dict_err</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">ctxt</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">item</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">matches</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">unifiers</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">unsafe_overlapped</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">))</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">=</span></span> <span class="kr" style="font-weight: 600;">cas<span class="idiff addition" style="background-color: #c7f0d2;">e</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">nonEmpty</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">matches</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">nonEmpty</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">unsafe_overlapped</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kr" style="font-weight: 600;"><span class="idiff right addition" style="background-color: #c7f0d2;">of</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2208" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2208
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2208" class="line" lang="haskell"><span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">Nothing</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kr" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">_</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">-></span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kr" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">do</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="c1" style="color: #998; font-style: italic;"><span class="idiff right addition" style="background-color: #c7f0d2;">-- No matches but perhaps several unifiers</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2209" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2209
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2209" class="line" lang="haskell"><span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">{</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kr" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">_</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">rel_binds</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">item</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;"><-</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">relevantBindings</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">True</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">ctxt</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff right addition" style="background-color: #c7f0d2;">item</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2210" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2210
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2210" class="line" lang="haskell"> <span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">;</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">candidate_insts</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;"><-</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff right addition" style="background-color: #c7f0d2;">get_candidate_instance</span>s</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2211" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2211
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2211" class="line" lang="haskell"> <span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">;</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">imp_errs</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">field_suggestions</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;"><-</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff right addition" style="background-color: #c7f0d2;">record_field_suggestions</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2212" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2212
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2212" class="line" lang="haskell"> <span class="p"><span class="idiff left addition" style="background-color: #c7f0d2;">;</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">return</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">cannot_resolve_msg</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">item</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">candidate_insts</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">rel_binds</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">imp_errs</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">field_suggestions</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff right addition" style="background-color: #c7f0d2;">}</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2213" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2213
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2213" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num new" data-linenumber="2214" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2214
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2214" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;"><span class="idiff left right addition" style="background-color: #c7f0d2;">-- Some matches => overlap errors</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2215" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2215
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2215" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">matchesNE</span><span class="p">,</span> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span></span>
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2216
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2216" class="line" lang="haskell"> <span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">OverlappingInstances</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">item</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">map</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">fst</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">matchesNE</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">getPotentialUnifiers</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">unifiers</span></span><span class="p"><span class="idiff right addition" style="background-color: #c7f0d2;">)</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2217" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2217
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2217" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num new" data-linenumber="2220" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="2218" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2218
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2218" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">match</span> <span class="o" style="font-weight: 600;">:|</span> <span class="kt" style="color: #458; font-weight: 600;">[]</span><span class="p">),</span> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="n" style="color: #333;">unsafe_overlappedNE</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">return</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2219" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2219
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2219" class="line" lang="haskell"> <span class="idiff left addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">UnsafeOverlap</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">item</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">fst</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">match</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">map</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">fst</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">unsafe_overlappedNE</span></span><span class="p"><span class="idiff right addition" style="background-color: #c7f0d2;">)</span></span></span>
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<td class="new_line diff-line-num new" data-linenumber="2220" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2220
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2220" class="line" lang="haskell"> <span class="p"><span class="idiff left addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">Just</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">matches</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">@</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kr" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">_</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">:|</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kr" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">_</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">),</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">Just</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">overlaps</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">)</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">-></span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">pprPanic</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="s" style="color: #d14;"><span class="idiff addition" style="background-color: #c7f0d2;">"mk_dict_err: multiple matches with overlap"</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">$</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">vcat</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">[</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">text</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="s" style="color: #d14;"><span class="idiff addition" style="background-color: #c7f0d2;">"matches:"</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;"><+></span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">ppr</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">matches</span></span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">,</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">text</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="s" style="color: #d14;"><span class="idiff addition" style="background-color: #c7f0d2;">"overlaps:"</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;"><+></span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">ppr</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">overlaps</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff right addition" style="background-color: #c7f0d2;">]</span></span></span>
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2220
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<td class="new_line diff-line-num" data-linenumber="2221" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2221
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2221" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<td class="old_line diff-line-num" data-linenumber="2221" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2221
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<td class="new_line diff-line-num" data-linenumber="2222" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2222
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2222" class="line" lang="haskell"> <span class="n" style="color: #333;">orig</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorItemOrigin</span> <span class="n" style="color: #333;">item</span></span>
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<td class="old_line diff-line-num" data-linenumber="2222" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2222
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<td class="new_line diff-line-num" data-linenumber="2223" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2223
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2223" class="line" lang="haskell"> <span class="n" style="color: #333;">pred</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">errorItemPred</span> <span class="n" style="color: #333;">item</span></span>
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<td class="old_line diff-line-num" data-linenumber="2223" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2223
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<td class="new_line diff-line-num" data-linenumber="2224" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2224
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2224" class="line" lang="haskell"> <span class="p">(</span><span class="n" style="color: #333;">clas</span><span class="p">,</span> <span class="n" style="color: #333;">tys</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">getClassPredTys</span> <span class="n" style="color: #333;">pred</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2224" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2224
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<td class="new_line diff-line-num old" data-linenumber="2225" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2224" class="line" lang="haskell"> <span class="n" style="color: #333;">ispecs</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="n" style="color: #333;">ispec</span> <span class="o" style="font-weight: 600;">|</span> <span class="p">(</span><span class="n" style="color: #333;">ispec</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">matches</span><span class="p">]</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2225" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2225
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<td class="new_line diff-line-num old" data-linenumber="2225" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2225" class="line" lang="haskell"> <span class="n" style="color: #333;">unsafe_ispecs</span> <span class="o" style="font-weight: 600;">=</span> <span class="p">[</span><span class="n" style="color: #333;">ispec</span> <span class="o" style="font-weight: 600;">|</span> <span class="p">(</span><span class="n" style="color: #333;">ispec</span><span class="p">,</span> <span class="kr" style="font-weight: 600;">_</span><span class="p">)</span> <span class="o" style="font-weight: 600;"><-</span> <span class="n" style="color: #333;">unsafe_overlapped</span><span class="p">]</span></span>
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<td class="old_line diff-line-num" data-linenumber="2226" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2226
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2225
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2225" class="line" lang="haskell"></span>
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2227
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2226
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2226" class="line" lang="haskell"> <span class="n" style="color: #333;">get_candidate_instances</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TcM</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span><span class="p">]</span></span>
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2228
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2227
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2227" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- See Note [Report candidate instances]</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -2271,18 +2270,6 @@ mk_dict_err ctxt (item, (matches, unifiers, unsafe_overlapped))</td>
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<td class="old_line diff-line-num" data-linenumber="2271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2271
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<td class="new_line diff-line-num" data-linenumber="2270" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2270
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2270" class="line" lang="haskell"> <span class="n" style="color: #333;">cannot_resolve_msg</span> <span class="n" style="color: #333;">item</span> <span class="n" style="color: #333;">candidate_insts</span> <span class="n" style="color: #333;">binds</span> <span class="n" style="color: #333;">imp_errs</span> <span class="n" style="color: #333;">field_suggestions</span></span>
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<td class="old_line diff-line-num" data-linenumber="2272" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2272
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<td class="new_line diff-line-num" data-linenumber="2271" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2271
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2271" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="kt" style="color: #458; font-weight: 600;">CannotResolveInstance</span> <span class="n" style="color: #333;">item</span> <span class="p">(</span><span class="n" style="color: #333;">getPotentialUnifiers</span> <span class="n" style="color: #333;">unifiers</span><span class="p">)</span> <span class="n" style="color: #333;">candidate_insts</span> <span class="n" style="color: #333;">imp_errs</span> <span class="n" style="color: #333;">field_suggestions</span> <span class="n" style="color: #333;">binds</span></span>
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2273
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<td class="new_line diff-line-num" data-linenumber="2272" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2272
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2272" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="2274" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2274
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2274" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Overlap errors.</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2275" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2275
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
</td>
<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2275" class="line" lang="haskell"> <span class="n" style="color: #333;">overlap_msg</span><span class="p">,</span> <span class="n" style="color: #333;">safe_haskell_msg</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">TcSolverReportMsg</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2276" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2276
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2276" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Normal overlap error</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2277" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2277
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2277" class="line" lang="haskell"> <span class="n" style="color: #333;">overlap_msg</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2278" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2278
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2278" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">assert</span> <span class="p">(</span><span class="n" style="color: #333;">not</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">matches</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span> <span class="kt" style="color: #458; font-weight: 600;">OverlappingInstances</span> <span class="n" style="color: #333;">item</span> <span class="n" style="color: #333;">ispecs</span> <span class="p">(</span><span class="n" style="color: #333;">getPotentialUnifiers</span> <span class="n" style="color: #333;">unifiers</span><span class="p">)</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2279" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2279
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2279" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="2280" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2280
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2280" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Overlap error because of Safe Haskell (first</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2281" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2281
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2281" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- match should be the most specific match)</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2282" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2282
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2282" class="line" lang="haskell"> <span class="n" style="color: #333;">safe_haskell_msg</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2283" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2283
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2283" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">=</span> <span class="n" style="color: #333;">assert</span> <span class="p">(</span><span class="n" style="color: #333;">matches</span> <span class="p">`</span><span class="n" style="color: #333;">lengthIs</span><span class="p">`</span> <span class="mi" style="color: #099;">1</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;">null</span> <span class="n" style="color: #333;">unsafe_ispecs</span><span class="p">))</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2284" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2284
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<td class="new_line diff-line-num old" data-linenumber="2273" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2284" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">UnsafeOverlap</span> <span class="n" style="color: #333;">item</span> <span class="n" style="color: #333;">ispecs</span> <span class="n" style="color: #333;">unsafe_ispecs</span></span>
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2285" class="line" lang="haskell"></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2273" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">{- Note [Report candidate instances]</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2274" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2275" class="line" lang="haskell"><span class="cm" style="color: #998; font-style: italic;">If we have an unsolved (Num Int), where `Int` is not the Prelude Int,</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/c3732c6210972a992e1153b0667cf8abf0351acd...607ce263fd8304d02c24e997abc0d17ead1cb19b#1dd9c7a6bbc222c976a6ec1c4b772232ae60f7e5" style="color: #1068bf;"><strong style="font-weight: bold;">compiler/GHC/Tc/Errors/Ppr.hs</strong></a>
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<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -2377,8 +2377,8 @@ pprTcSolverReportMsg (CEC {cec_encl = implics}) (OverlappingInstances item match</td>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2377" class="line" lang="haskell"> <span class="n" style="color: #333;">sep</span> <span class="p">[</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Matching givens (or their superclasses):"</span></span>
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<td class="new_line diff-line-num" data-linenumber="2378" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2378
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2378" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="n" style="color: #333;">matching_givens</span><span class="p">)]</span></span>
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2379
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<td class="new_line diff-line-num" data-linenumber="2379" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2379
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2379" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">potentialInstancesErrMsg</span></span>
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<td class="new_line diff-line-num old" data-linenumber="2380" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2380" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PotentialInstances</span> <span class="p">{</span> <span class="n" style="color: #333;">matches</span><span class="p">,</span> <span class="n" style="color: #333;">unifiers</span> <span class="p">})</span></span>
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2381
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<td class="new_line diff-line-num old" data-linenumber="2380" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2381" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">ppWhen</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">matching_givens</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;"><span class="idiff left right deletion" style="background-color: #fac5cd;">isSingleton</span></span> <span class="n" style="color: #333;">matches</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">unifiers</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2380" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2380
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2380" class="line" lang="haskell"> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">PotentialInstances</span> <span class="p">{</span> <span class="n" style="color: #333;"><span class="idiff left addition" style="background-color: #c7f0d2;">matches</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">=</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">toList</span></span><span class="idiff right addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;">matches</span><span class="p">,</span> <span class="n" style="color: #333;">unifiers</span> <span class="p">})</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2381" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2381
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2381" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">ppWhen</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">matching_givens</span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;"><span class="idiff left addition" style="background-color: #c7f0d2;">null</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="p"><span class="idiff addition" style="background-color: #c7f0d2;">(</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">tail</span></span> <span class="n" style="color: #333;">matches</span><span class="p"><span class="idiff right addition" style="background-color: #c7f0d2;">)</span></span> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">unifiers</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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2382
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<td class="new_line diff-line-num" data-linenumber="2382" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2382" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Intuitively, some given matched the wanted in their</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2383" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- flattened or rewritten (from given equalities) form</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2384" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- but the matcher can't figure that out because the</span></span>
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<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -2388,7 +2388,7 @@ pprTcSolverReportMsg (CEC {cec_encl = implics}) (OverlappingInstances item match</td>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2388" class="line" lang="haskell"> <span class="n" style="color: #333;">sep</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"There exists a (perhaps superclass) match:"</span></span>
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2389
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<td class="new_line diff-line-num" data-linenumber="2389" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2389
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2389" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">(</span><span class="n" style="color: #333;">pp_givens</span> <span class="n" style="color: #333;">useful_givens</span><span class="p">))]</span></span>
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2390
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2390
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2390" class="line" lang="haskell"></span>
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<td class="old_line diff-line-num old" data-linenumber="2391" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2391
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<td class="new_line diff-line-num old" data-linenumber="2391" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2391" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">ppWhen</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left right deletion" style="background-color: #fac5cd;">isSingleton</span></span> <span class="n" style="color: #333;">matches</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="old_line diff-line-num new" data-linenumber="2392" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="2391" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2391
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2391" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">ppWhen</span> <span class="p">(</span><span class="n" style="color: #333;"><span class="idiff left addition" style="background-color: #c7f0d2;">null</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">$</span></span><span class="idiff addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff right addition" style="background-color: #c7f0d2;">tail</span></span> <span class="n" style="color: #333;">matches</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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<td class="old_line diff-line-num" data-linenumber="2392" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2392
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<td class="new_line diff-line-num" data-linenumber="2392" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2392
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2392" class="line" lang="haskell"> <span class="n" style="color: #333;">parens</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">ppUnless</span> <span class="p">(</span><span class="n" style="color: #333;">null</span> <span class="n" style="color: #333;">tyCoVars</span><span class="p">)</span> <span class="o" style="font-weight: 600;">$</span></span>
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2393
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<td class="new_line diff-line-num" data-linenumber="2393" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2393
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2393" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"The choice depends on the instantiation of"</span> <span class="o" style="font-weight: 600;"><+></span></span>
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2394
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<td class="new_line diff-line-num" data-linenumber="2394" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2394
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2394" class="line" lang="haskell"> <span class="n" style="color: #333;">quotes</span> <span class="p">(</span><span class="n" style="color: #333;">pprWithCommas</span> <span class="n" style="color: #333;">ppr</span> <span class="n" style="color: #333;">tyCoVars</span><span class="p">)</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="2429" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="2429" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -2429,16 +2429,16 @@ pprTcSolverReportMsg (CEC {cec_encl = implics}) (OverlappingInstances item match</td>
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2429
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<td class="new_line diff-line-num" data-linenumber="2429" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2429
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2429" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Just</span> <span class="p">(</span><span class="n" style="color: #333;">clas'</span><span class="p">,</span> <span class="n" style="color: #333;">tys'</span><span class="p">)</span> <span class="o" style="font-weight: 600;">-></span> <span class="n" style="color: #333;">clas'</span> <span class="o" style="font-weight: 600;">==</span> <span class="n" style="color: #333;">clas</span></span>
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<td class="old_line diff-line-num" data-linenumber="2430" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2430
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<td class="new_line diff-line-num" data-linenumber="2430" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2430
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2430" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">&&</span> <span class="n" style="color: #333;">isJust</span> <span class="p">(</span><span class="n" style="color: #333;">tcMatchTys</span> <span class="n" style="color: #333;">tys</span> <span class="n" style="color: #333;">tys'</span><span class="p">)</span></span>
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<td class="old_line diff-line-num" data-linenumber="2431" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2431
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<td class="new_line diff-line-num" data-linenumber="2431" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2431
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2431" class="line" lang="haskell"> <span class="kt" style="color: #458; font-weight: 600;">Nothing</span> <span class="o" style="font-weight: 600;">-></span> <span class="kt" style="color: #458; font-weight: 600;">False</span></span>
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<td class="old_line diff-line-num old" data-linenumber="2432" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
2432
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<td class="new_line diff-line-num old" data-linenumber="2432" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2432" class="line" lang="haskell"><span class="n" style="color: #333;">pprTcSolverReportMsg</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnsafeOverlap</span> <span class="n" style="color: #333;">item</span> <span class="n" style="color: #333;">match<span class="idiff left right deletion" style="background-color: #fac5cd;">es</span></span> <span class="n" style="color: #333;">unsafe_overlapped</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2432" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2432
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2432" class="line" lang="haskell"><span class="n" style="color: #333;">pprTcSolverReportMsg</span> <span class="kr" style="font-weight: 600;">_</span> <span class="p">(</span><span class="kt" style="color: #458; font-weight: 600;">UnsafeOverlap</span> <span class="n" style="color: #333;">item</span> <span class="n" style="color: #333;">match</span> <span class="n" style="color: #333;">unsafe_overlapped</span><span class="p">)</span> <span class="o" style="font-weight: 600;">=</span></span>
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2433
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<td class="new_line diff-line-num" data-linenumber="2433" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2433
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2433" class="line" lang="haskell"> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">addArising</span> <span class="n" style="color: #333;">ct_loc</span> <span class="p">(</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"Unsafe overlapping instances for"</span></span>
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<td class="old_line diff-line-num" data-linenumber="2434" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2434
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<td class="new_line diff-line-num" data-linenumber="2434" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2434
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2434" class="line" lang="haskell"> <span class="o" style="font-weight: 600;"><+></span> <span class="n" style="color: #333;">pprType</span> <span class="p">(</span><span class="n" style="color: #333;">mkClassPred</span> <span class="n" style="color: #333;">clas</span> <span class="n" style="color: #333;">tys</span><span class="p">))</span></span>
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2435
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2435
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2435" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">sep</span> <span class="p">[</span><span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"The matching instance is:"</span><span class="p">,</span></span>
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2436" class="line" lang="haskell"> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">pprInstance</span> <span class="o" style="font-weight: 600;"><span class="idiff left deletion" style="background-color: #fac5cd;">$</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;"><span class="idiff deletion" style="background-color: #fac5cd;">head</span></span><span class="idiff deletion" style="background-color: #fac5cd;"> </span><span class="n" style="color: #333;">match<span class="idiff right deletion" style="background-color: #fac5cd;">es</span></span><span class="p">)]</span></span>
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<td class="new_line diff-line-num new" data-linenumber="2436" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2436
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2436" class="line" lang="haskell"> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">pprInstance</span> <span class="n" style="color: #333;">match</span><span class="p">)]</span></span>
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2437
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<td class="new_line diff-line-num" data-linenumber="2437" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2437
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2437" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">vcat</span> <span class="p">[</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"It is compiled in a Safe module and as such can only"</span></span>
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2438
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<td class="new_line diff-line-num" data-linenumber="2438" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2438
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2438" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"overlap instances from the same module, however it"</span></span>
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2439
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<td class="new_line diff-line-num" data-linenumber="2439" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2439
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2439" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"overlaps the following instances from different"</span> <span class="o" style="font-weight: 600;"><+></span></span>
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2440
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<td class="new_line diff-line-num" data-linenumber="2440" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
2440
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2440" class="line" lang="haskell"> <span class="n" style="color: #333;">text</span> <span class="s" style="color: #d14;">"modules:"</span></span>
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2441
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<td class="new_line diff-line-num old" data-linenumber="2441" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC2441" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">pprInstances</span> <span class="o" style="font-weight: 600;">$</span> <span class="n" style="color: #333;">unsafe_overlapped</span><span class="p">])</span></span>
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<td class="old_line diff-line-num new" data-linenumber="2442" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
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<td class="new_line diff-line-num new" data-linenumber="2441" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
2441
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC2441" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">nest</span> <span class="mi" style="color: #099;">2</span> <span class="p">(</span><span class="n" style="color: #333;">vcat</span> <span class="p">[</span><span class="n" style="color: #333;">pprInstances</span> <span class="o" style="font-weight: 600;">$</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="n" style="color: #333;"><span class="idiff addition" style="background-color: #c7f0d2;">toList</span></span><span class="idiff right addition" style="background-color: #c7f0d2;"> </span><span class="n" style="color: #333;">unsafe_overlapped</span><span class="p">])</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2442" class="line" lang="haskell"> <span class="p">]</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2443" class="line" lang="haskell"> <span class="p">]</span></span>
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2444
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC2444" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">where</span></span>
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<a href="https://gitlab.haskell.org/ghc/ghc/-/compare/c3732c6210972a992e1153b0667cf8abf0351acd...607ce263fd8304d02c24e997abc0d17ead1cb19b#cdba811872892f235fe7059df1a6c538fba60816" style="color: #1068bf;"><strong style="font-weight: bold;">compiler/GHC/Tc/Errors/Types.hs</strong></a>
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<td class="diff-line-num unfold js-unfold 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: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_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: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -3028,7 +3028,7 @@ data TcSolverReportMsg</td>
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<td class="old_line diff-line-num" 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: inherit;" align="right" bgcolor="#fafafa">
3028
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3028
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3028" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Test cases: tcfail118, tcfail121, tcfail218.</span></span>
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<td class="old_line diff-line-num" data-linenumber="3029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3029
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<td class="new_line diff-line-num" data-linenumber="3029" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3029
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3029" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">OverlappingInstances</span></span>
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3030
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<td class="new_line diff-line-num" data-linenumber="3030" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3030
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3030" class="line" lang="haskell"> <span class="p">{</span> <span class="n" style="color: #333;">overlappingInstances_item</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ErrorItem</span></span>
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3031
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<td class="new_line diff-line-num old" data-linenumber="3031" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC3031" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">overlappingInstances_matches</span> <span class="o" style="font-weight: 600;">::</span> <span class="p"><span class="idiff left deletion" style="background-color: #fac5cd;">[</span></span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span><span class="p"><span class="idiff right deletion" style="background-color: #fac5cd;">]</span></span></span>
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<td class="new_line diff-line-num new" 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: inherit;" align="right" bgcolor="#ddfbe6">
3031
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC3031" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">overlappingInstances_matches</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NonEmpty</span></span><span class="idiff right addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span></span>
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3032
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3032" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">overlappingInstances_unifiers</span> <span class="o" style="font-weight: 600;">::</span> <span class="p">[</span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span><span class="p">]</span> <span class="p">}</span></span>
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3033" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num" data-linenumber="3034" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3034
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3034" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- | Could not solve a constraint from instances because</span></span>
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<td class="diff-line-num unfold js-unfold old_line" data-linenumber="3038" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="diff-line-num unfold js-unfold new_line" data-linenumber="3038" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">...</td>
<td class="line_content match" style="color: rgba(0,0,0,0.3); padding: inherit;" bgcolor="#fafafa">@@ -3038,8 +3038,8 @@ data TcSolverReportMsg</td>
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<td class="old_line diff-line-num" data-linenumber="3038" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3038
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<td class="new_line diff-line-num" data-linenumber="3038" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3038
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3038" class="line" lang="haskell"> <span class="c1" style="color: #998; font-style: italic;">-- Test cases: SH_Overlap{1,2,5,6,7,11}.</span></span>
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<td class="old_line diff-line-num" data-linenumber="3039" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3039
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<td class="new_line diff-line-num" data-linenumber="3039" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3039
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3039" class="line" lang="haskell"> <span class="o" style="font-weight: 600;">|</span> <span class="kt" style="color: #458; font-weight: 600;">UnsafeOverlap</span></span>
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<td class="old_line diff-line-num" data-linenumber="3040" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3040
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<td class="new_line diff-line-num" data-linenumber="3040" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3040
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3040" class="line" lang="haskell"> <span class="p">{</span> <span class="n" style="color: #333;">unsafeOverlap_item</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ErrorItem</span></span>
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<td class="old_line diff-line-num old" data-linenumber="3041" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
3041
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<td class="new_line diff-line-num old" data-linenumber="3041" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC3041" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">unsafeOverlap_match<span class="idiff left deletion" style="background-color: #fac5cd;">es</span></span> <span class="o" style="font-weight: 600;">::</span> <span class="p"><span class="idiff deletion" style="background-color: #fac5cd;">[</span></span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span><span class="p"><span class="idiff right deletion" style="background-color: #fac5cd;">]</span></span></span>
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<td class="old_line diff-line-num old" data-linenumber="3042" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
3042
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<td class="new_line diff-line-num old" data-linenumber="3041" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #fac5cd; border-right-style: solid; padding: inherit;" align="right" bgcolor="#f9d7dc">
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<td class="line_content old" style="padding: inherit;" bgcolor="#fbe9eb"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>-<span id="LC3042" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">unsafeOverlapped</span> <span class="o" style="font-weight: 600;">::</span> <span class="p"><span class="idiff left deletion" style="background-color: #fac5cd;">[</span></span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span><span class="p"><span class="idiff right deletion" style="background-color: #fac5cd;">]</span></span> <span class="p">}</span></span>
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<td class="new_line diff-line-num new" data-linenumber="3041" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
3041
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC3041" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">unsafeOverlap_match</span><span class="idiff left right addition" style="background-color: #c7f0d2;"> </span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;">ClsInst</span></span>
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<td class="new_line diff-line-num new" data-linenumber="3042" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #c7f0d2; border-right-style: solid; padding: inherit;" align="right" bgcolor="#ddfbe6">
3042
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<td class="line_content new" style="padding: inherit;" bgcolor="#ecfdf0"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'>+<span id="LC3042" class="line" lang="haskell"> <span class="p">,</span> <span class="n" style="color: #333;">unsafeOverlapped</span> <span class="o" style="font-weight: 600;">::</span> <span class="kt" style="color: #458; font-weight: 600;"><span class="idiff left addition" style="background-color: #c7f0d2;">NE</span></span><span class="o" style="font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">.</span></span><span class="kt" style="color: #458; font-weight: 600;"><span class="idiff addition" style="background-color: #c7f0d2;">NonEmpty</span></span><span class="idiff right addition" style="background-color: #c7f0d2;"> </span><span class="kt" style="color: #458; font-weight: 600;">ClsInst</span> <span class="p">}</span></span>
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3043
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3043
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3043" class="line" lang="haskell"></span>
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<td class="new_line diff-line-num" data-linenumber="3044" style="width: 35px; color: rgba(0,0,0,0.3); border-right-width: 1px; border-right-color: #f0f0f0; border-right-style: solid; padding: inherit;" align="right" bgcolor="#fafafa">
3044
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<td class="line_content" style="padding: inherit;"><pre style='display: block; font-size: 0.8125rem; color: #303030; position: relative; font-family: "Menlo", "DejaVu Sans Mono", "Liberation Mono", "Consolas", "Ubuntu Mono", "Courier New", "andale mono", "lucida console", monospace; word-break: break-all; word-wrap: break-word; background-color: inherit; border-radius: 2px; margin: 0; padding: 0; border: inherit solid #dbdbdb;'> <span id="LC3044" class="line" lang="haskell"> <span class="kr" style="font-weight: 600;">deriving</span> <span class="kt" style="color: #458; font-weight: 600;">Generic</span></span>
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