[clang] [LifetimeSafety] Use a member instead of global function for a use (PR #227713)

[Utkarsh Saxena via cfe-commits]

usx95 wrote:

Missed to give context. This helps to cherry pick https://github.com/llvm/llvm-project/commit/6ccc4917217c650428fd36360690dad4a3f69d20 without picking d41006c17bfc36cf899f39e93f839ae8ed3db637 

https://github.com/llvm/llvm-project/pull/227713