[clang] [clang-format] TableGen keywords support. (PR #77477)

[Björn Schäpers via cfe-commits]

HazardyKnusperkeks wrote:

You can of course always ask for commit access: https://llvm.org/docs/DeveloperPolicy.html#obtaining-commit-access

https://github.com/llvm/llvm-project/pull/77477