[llvm-branch-commits] [clang] [LifetimeSafety] Implement support for lifetimebound attribute (PR #158489)

[Gábor Horváth via llvm-branch-commits]

https://github.com/Xazax-hun approved this pull request.

Looks great, some minor nits inline. Thanks! 

https://github.com/llvm/llvm-project/pull/158489