[llvm-branch-commits] Reland "[compiler-rt] Allow running tests without installing first" (PR #88075)

[Martin Storsjö via llvm-branch-commits]

mstorsjo wrote:

> @mstorsjo It would be great if you could test this on windows.

Thanks, this does seem to run fine in my configuration!

https://github.com/llvm/llvm-project/pull/88075