[clang] [clang-tools-extra] [Clang] [Diagnostics] Simplify filenames that contain '..' (PR #143520)

[Aaron Ballman via cfe-commits]

AaronBallman wrote:

I don't think we have a way to support that. I looked through lit to see what kind of `REQUIRES` support we have and we can target systems and such, but I don't see any built-in support for non-network mounts.

The only suggestion I have might be terrible, but you could write some python to enumerate mount points, determine which ones are network drives, and then check the test path against the list of mount points. But the easy alternative is for folks in this situation to XFAIL the test locally (unfortunately).

https://github.com/llvm/llvm-project/pull/143520