[clang] [clang][analyzer] Add plist macro formatting (PR #156046)

[Donát Nagy via cfe-commits]

https://github.com/NagyDonat approved this pull request.

Looks good to me, I think the commit is ready to be merged.

The only remaining question is whether we want to enable this feature by default -- I think it may be worth to wait a bit for other opinion(s?) about that question, but @ankurkraj I'm happy to help you with merging your commit whenever you request it.

https://github.com/llvm/llvm-project/pull/156046