[clang] [clang-tools-extra] [clang-tidy] Avoid processing declarations in system headers (PR #128150)

[Carlos Galvez via cfe-commits]

carlosgalvezp wrote:

Thanks for the info, sorry this created trouble for you!

An option to turn this behavior off should be easy to add. It's however problematic if it lasts for more than one release because it's harder to deprecate later. 

It would be good to have a unit test of this case, would the one in the CERT check mentioned above be sufficient? 


https://github.com/llvm/llvm-project/pull/128150