[clang] [Sema] Instantiate destructors for initialized anonymous union fields (PR #128866)

[Eli Friedman via cfe-commits]

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@@ -5451,10 +5451,31 @@ bool Sema::SetCtorInitializers(CXXConstructorDecl *Constructor, bool AnyErrors,
            NumInitializers * sizeof(CXXCtorInitializer*));
     Constructor->setCtorInitializers(baseOrMemberInitializers);
 
+    SourceLocation Location = Constructor->getLocation();
+
+    for (CXXCtorInitializer *Initializer : Info.AllToInit) {
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efriedma-quic wrote:

Instead of trying to detect the specific fields not handled by MarkBaseAndMemberDestructorsReferenced, I think it would be more straightforward to split MarkBaseDestructorsReferenced and MarkMemberDestructorsReferenced into separate functions, and just don't call MarkMemberDestructorsReferenced from here.

https://github.com/llvm/llvm-project/pull/128866