[clang] [libcxx] [Clang] Normalize constraints before checking for satisfaction (PR #141776)

[Matheus Izvekov via cfe-commits]

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@@ -282,6 +287,11 @@ class TypeConstraint {
   }
 };
 
+/// Insertion operator for diagnostics.  This allows sending TemplateName's
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mizvekov wrote:

```suggestion
/// Insertion operator for diagnostics.  This allows sending ConceptReferences
```

https://github.com/llvm/llvm-project/pull/141776