[libcxx-commits] [libcxx] [libc++] Test existence of generated headers in the modulemap (PR #209312)

[Nikolas Klauser via libcxx-commits]

https://github.com/philnik777 commented:

The changes LGTM, but the title doesn't really reflect anymore what the patch does, since we introduce an entirely new modulemap now.

https://github.com/llvm/llvm-project/pull/209312