[libcxx-commits] [libcxx] [libc++][test] Rewrite tests for `std::byte` (PR #204116)

[Louis Dionne via libcxx-commits]

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

This is great, thanks. I'm especially happy to see `.compile.fail.cpp` tests being removed, since we're trying to eliminate those.

I have a minor comment about synopsis placement but this LGTM.

https://github.com/llvm/llvm-project/pull/204116