[llvm] [LLVM][NFC] Reduce redundant copy parameter in lambda (PR #110299)

[Amr Hesham via llvm-commits]

AmrDeveloper wrote:

> Since the text is only being used in a debug message, it could be `const char*`. Then you're only passing a pointer as opposed to StringRef that's pointer + size.
> 
> Also please update the PR title to reflect what you choose to do.
> 
> This is reducing copies in a sense, but it's not removing it entirely.

Thank you, Done

https://github.com/llvm/llvm-project/pull/110299