[libcxx-commits] [libcxx] [libc++] Handle threads-related .cpp files like we do all other source files (PR #71100)

[Louis Dionne via libcxx-commits]

ldionne wrote:

@tru
For some reason, the `clang-format` job isn't ignoring `call_once.cpp` even though it is part of `ignore_format.txt`. See https://github.com/llvm/llvm-project/actions/runs/6746051260/job/18339130812?pr=71100.

Is it possible that there's a slight bug in how the `clang-format` job handles new files (i.e. not files that were modified, but files that were added by the patch)?

For now I'll ship this and then clang-format `call_once.cpp` in a separate commit since this should be non-controversial.

https://github.com/llvm/llvm-project/pull/71100