[clang] No longer add enumeration constants to the wrong scope (PR #134998)

[Aaron Ballman via cfe-commits]

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@@ -151,3 +151,21 @@ class C {
                         // expected-error {{unexpected ';' before ')'}}
 };
 }
+
+#if __cplusplus >= 201103L
+namespace GH23317 {
+struct A {
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AaronBallman wrote:

Yup, that still compiles without diagnosing.

https://github.com/llvm/llvm-project/pull/134998