[libcxx-commits] [libcxx] [libc++][test] Make tests for constexpr `hash<vector<bool>>` libc++-specific (PR #132617)

[Louis Dionne via libcxx-commits]

ldionne wrote:

IMO we should remove that extension. If it was added as a mistake, we should remove it.

It's probably best to make it non-constexpr but provide a macro to make it constexpr again for one release, just to provide a migration path. That would be my preferred direction here.

https://github.com/llvm/llvm-project/pull/132617