[clang] [clang-tools-extra] [clang] Implement CWG2398 provisional TTP matching to class templates (PR #94981)

[via cfe-commits]

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@@ -2304,6 +2306,15 @@ class ASTContext : public RefCountedBase<ASTContext> {
                                                 unsigned Index,
                                                 bool Final) const;
 
+  /// Represents a TemplateName which had some of it's default arguments
----------------
cor3ntin wrote:

```suggestion
  /// Represents a TemplateName which had some of its default arguments
```

https://github.com/llvm/llvm-project/pull/94981