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

[via cfe-commits]

================
@@ -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());
----------------
Sirraide wrote:

I don’t think we need to involve `ParseUnaryExprOrTypeTraitExpr()` in this (this function is primarily for expressions of the form `<something> ( <expr> )`); is there any reason we can’t just call `ParseCXXReflectExpression()` in `ParseCastExpression()`?

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