[clang-tools-extra] [clang-tidy] Improve performance of google-runtime-int (PR #86596)

[Piotr Zegar via cfe-commits]

PiotrZSL wrote:

I will go with merging this. There are still few improvements possible, but they require partial check rewrite.
I may to work on some PoC. You could test with additional matcher (at the beginning): `unless(isExpansionInSystemHeader())` and see if excluding system headers helps more.


https://github.com/llvm/llvm-project/pull/86596