[clang] [clang] improve suggested attribute location for scoped enums (PR #124122)

[Timm Baeder via cfe-commits]

tbaederr wrote:

I do remember we already had this in https://github.com/llvm/llvm-project/issues/61660 - is that fix not suficcient for c++ style attributes?

https://github.com/llvm/llvm-project/pull/124122