[libcxx-commits] [libcxx] [libc++] Add `-Watomic-memory-ordering` diagnostic tests for `atomic_ref` (PR #130206)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 approved this pull request.

Thanks! LGTM with the complete license header.

https://github.com/llvm/llvm-project/pull/130206