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

[Chris Apple via cfe-commits]

cjappl wrote:

Ah! Nice, that is a totally valid solution as well. The only argument for the parameter that I can think of is symmetry.

I just noticed it _could_ accept a parameter, so I expected the behavior above. Absolutely good by me to strike it from being possible.

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