[clang] [Clang][Sema] Skip checking anonymous enum in using enum declaration (PR #87144)

[Shafik Yaghmour via cfe-commits]

https://github.com/shafik commented:

LGTM after addressing Aaron's comments.

Can you elaborate more on the details of the bug in the summary. This goes into the git log and we want folks to be able to understand the problem well from the summary w/o having to do additional checks.

Thank you

https://github.com/llvm/llvm-project/pull/87144