[clang] [compiler-rt] [llvm] [rtsan][llvm][NFC] Rename sanitize_realtime_unsafe attr to sanitize_realtime_blocking (PR #113155)

[Vitaly Buka via cfe-commits]

vitalybuka wrote:

> LGTM - would love some eyes from more established folks to make sure we are not breaking any bw-compatability foo, and seeing as this spans the tree a bit.
> 
> Definitely I am for this change, I think the attr is more clear this way, and we caught it before LLVM 20 was cut.

Having that it was just recently landed, I don't see a problem with breaking bw-comp.

Did you consider `sanitize_blocking` ?

https://github.com/llvm/llvm-project/pull/113155