[clang] [Clang][Sema] Diagnosis for constexpr constructor not initializing a union member (PR #81225)

[Shafik Yaghmour via cfe-commits]

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@@ -2471,6 +2480,23 @@ static bool CheckConstexprFunctionBody(Sema &SemaRef, const FunctionDecl *Dcl,
   return true;
 }
 
+static bool
+checkUnionConstructorIntializer(Sema &SemaRef, const FunctionDecl *Dcl,
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shafik wrote:

I really don't like this name, I don't feel like it really describes what this function does. I don't have a good substitute off the top of my head. CC @Endilll for some help.

https://github.com/llvm/llvm-project/pull/81225