[llvm] [ProfCheck][NFC] Make Function argument from branch weight setter optional (PR #166032)

[Aiden Grossman via llvm-commits]

https://github.com/boomanaiden154 commented:

The best way to share authorship is to use the `Co-Authored-By` tag in a commit message (eg `Co-authored-by: ANOTHER-NAME <ANOTHER-NAME at EXAMPLE.COM>"`).



https://github.com/llvm/llvm-project/pull/166032