[clang] [Clang] add emit -Wignored-cv-qualifiers diagnostic for cv-qualified base classes (PR #132116)

[Lyle Dean via cfe-commits]

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@@ -497,6 +497,7 @@ def GNUImaginaryConstant : DiagGroup<"gnu-imaginary-constant">;
 def IgnoredGCH : DiagGroup<"ignored-gch">;
 def IgnoredReferenceQualifiers : DiagGroup<"ignored-reference-qualifiers">;
 def IgnoredQualifiers : DiagGroup<"ignored-qualifiers", [IgnoredReferenceQualifiers]>;
+def IgnoredCVQualifiers : DiagGroup<"ignored-cv-qualifiers", [IgnoredReferenceQualifiers]>;
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lyledean1 wrote:

I've updated this, so all references will be to `ignored-base-class-qualifiers` now 

https://github.com/llvm/llvm-project/pull/132116