[clang] [clang] Reject __super when preceded by a scope specifier (PR #221492)

[via cfe-commits]

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@@ -21,6 +21,13 @@ struct Base1 {
   typedef int XXX;
 };
 
+struct InvalidGlobalQualifier : Base1 {
+  // A parser that drops the global qualifier is left with the valid
+  // declaration `__super::XXX x;` and accepts this line silently; expecting
+  // a diagnostic here catches that even in builds without assertions.
+  ::__super::XXX x; // expected-error {{expected unqualified-id}}
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AZero13 wrote:

I'll add them tomorrow. 

https://github.com/llvm/llvm-project/pull/221492