[clang] [llvm] [clang][python][test] Move python binding tests to lit framework (PR #146844)

[Jannick Kremer via llvm-commits]

DeinAlptraum wrote:

It seems that the `clang-s390x-linux-multistage` and `clang-s390x-linux-lnt` builders use the exact same cmake settings, so only one of them failing seems quite strange... @uweigand can you tell me what the difference between these two is/do you have any idea what might cause these failures on only one of them?

I'm currently considering just rebasing and trying again to see if that fixes it.

https://github.com/llvm/llvm-project/pull/146844