[libcxx-commits] [libcxx] [libc++][optional] LWG4497: `std::nullopt_t` should be comparable (PR #214975)

[A. Jiang via libcxx-commits]

https://github.com/frederick-vs-ja approved this pull request.

I'm inclined to merge this as-is since the new test file is testing desired properties. I'm sure that this test will also pass with MSVC STL.

I'll try to submit a new LWG issue this week.

Also CC @tomaszkam @jwakely.

https://github.com/llvm/llvm-project/pull/214975