[clang-tools-extra] [Clang-tidy] Mark broken test as unsupported. (PR #191635)

[Baranov Victor via cfe-commits]

vbvictor wrote:

I think we have "revert to green" policy instead of "fixing forward".
Can we now reverse to green and think about how to properly fix the test.
If the tests is failing because of guessing incorrect flags in `compiler_commands.json`, I think one of the solution would to create a temp dir with predefined `compiler_commands.json` so that test will always pick it.

Do we run PCH as part of the premerge or is there another way to verify this (I don't run PCH build locally)?



https://github.com/llvm/llvm-project/pull/191635