[clang] [clang] Centralize common checks for type attributes (PR #227421)

[via cfe-commits]

elizabethandrews wrote:

> > Can you add tests for #227549 too since that issue is also due to a missing argument count check
> 
> Done. I added to the existing diagnostic test file.

Would you like me to add C/CPP tests as well?

https://github.com/llvm/llvm-project/pull/227421