[libcxx-commits] [libcxx] [libc++] Improve diagnostic when violating `std::atomic` trivially copyable mandates (PR #131754)

[Louis Dionne via libcxx-commits]

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ldionne wrote:

I agree here, this is technically not specific to libc++ even though we don't implement proper checking for any other stdlib right now. Let's move it back to `libcxx/test/std`.

https://github.com/llvm/llvm-project/pull/131754