[clang] [CONCEPTS]Corrected comparison of constraints with out of line CTD (PR #69244)

[Mariya Podchishchaeva via cfe-commits]

================
@@ -8615,8 +8604,48 @@ class Sema final {
     TPL_TemplateParamsEquivalent,
   };
 
+  // A struct to represent the 'new' declaration, which is either itself just
+  // the named decl, or the important information we need about it in order to
+  // do constraint comparisions.
----------------
Fznamznon wrote:

```suggestion
  // do constraint comparisons.
```

https://github.com/llvm/llvm-project/pull/69244