[clang] nonblocking/nonallocating attributes (was: nolock/noalloc) (PR #84983)

[via cfe-commits]

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

One last minor comment, but other than that I think we’re good. 

This is a comparatively large pr, so while it’s possible that I missed something, I don’t think there is much to be gained from me staring at this for any longer than I already have. That said, I should like to wait for someone else to approve this as well before merging it.

https://github.com/llvm/llvm-project/pull/84983