[libc-commits] [libc] [libc] Implement lit-based test execution for Libc (PR #178746)

[Jeff Bailey via libc-commits]

kaladron wrote:

> I'd expect this to replace `check-libc` behavior, but we keep the other specific CMake targets.

@jhuber6 I want to commit it and make sure that people can test it for their cases before moving check-libc over to it.

https://github.com/llvm/llvm-project/pull/178746