[libcxx-commits] [libcxx] [libc++] Make locks available with _LIBCPP_HAS_NO_THREADS (PR #98717)

[Petr Hosek via libcxx-commits]

petrhosek wrote:

> There should be at least some test that this works with threading disabled. I don't know whether we have any tests currently that could now be enabled. If not, let's add at least a simple one for all the classes.

There are several tests that should now pass even with threading disabled, I removed `UNSUPPORTED: no-threads` from all of them.

https://github.com/llvm/llvm-project/pull/98717