[clang] [Clang][Sema] Support 'counted_by' attribute on FAM/pointers in anonymous unions (PR #171996)

[Oliver Hunt via cfe-commits]

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@@ -26,14 +26,20 @@ getCountAttrKind(bool CountInBytes, bool OrNull) {
                 : CountAttributedType::CountedBy;
 }
 
+// Check if a RecordDecl is anonymous or will be anonymous once processing
+// completes. The anonymous flag may not be set yet during parsing.
+static bool IsAnonymousOrWillBeAnonymous(const RecordDecl *RD) {
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ojhunt wrote:

Yeah, I think this change in rules was not particularly aggressively pushed, and people tend to style match surrounding code :-/

I really think that if we are going to change rules around naming we should try to automate the change across the codebase to mitigate this :-/

https://github.com/llvm/llvm-project/pull/171996