[clang] [clang-tools-extra] [llvm] [clang]: reflection operator parsing for global namespace and primitive types (PR #164692)

[via llvm-commits]

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@@ -2249,6 +2283,9 @@ ExprResult Parser::ParseUnaryExprOrTypeTraitExpression() {
   else if (getLangOpts().C2y && OpTok.is(tok::kw__Countof))
     Diag(OpTok, diag::warn_c2y_compat_keyword) << OpTok.getName();
 
+  if (OpTok.is(tok::caretcaret))
+    return ParseCXXReflectExpression(OpTok.getLocation());
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Sirraide wrote:

On that note, I think it would simplify things if we also moved consuming the `^^` token into `ParseCXXReflectExpression()` and put an assertion there instead; that’s usually how we do this.

https://github.com/llvm/llvm-project/pull/164692