[clang] [clang] Improve bit-field in ref NTTP diagnostic (PR #71077)

[Vlad Serebrennikov via cfe-commits]

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@@ -138,7 +138,7 @@ namespace dr1295 { // dr1295: 4
 #if __cplusplus <= 201402L
   // expected-error at -2 {{does not refer to any declaration}} expected-note at -3 {{here}}
 #else
-  // expected-error at -4 {{refers to subobject}}
+  // expected-error at -4 {{bind to bit-field in converted constant expression}}
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Endilll wrote:

Nit from me: citing diagnostic message without omissions helps later on when someone revisits the test.

https://github.com/llvm/llvm-project/pull/71077