[clang] [clang-format] Honor later negated .clang-format-ignore patterns (PR #195432)

[Björn Schäpers via cfe-commits]

https://github.com/HazardyKnusperkeks commented:

Can you add a test that shows, that the ignore is overwritten by a following match?

https://github.com/llvm/llvm-project/pull/195432