[clang] [clang-tools-extra] [clang-tidy] Avoid matching nodes in system headers (PR #151035)

[Gábor Horváth via cfe-commits]

https://github.com/Xazax-hun commented:

What is the design here around macros? Like what is the expected behavior for code expanded from macros defined in system header?

https://github.com/llvm/llvm-project/pull/151035