[libc-commits] [libc] [libc] fix unit tests in fullbuild (PR #78864)

[Schrodinger ZHU Yifan via libc-commits]

SchrodingerZhu wrote:

> I thought unit tests were supposed to be hosted even in full build mode. Though I'm unsure why we pass `-ffreestanding` in the first place. I forget what we do for the hermetic tests, maybe `-nostdlib`?

Not sure. I do see `freestanding` flying around fullbuild targets everywhere.

https://github.com/llvm/llvm-project/pull/78864