[llvm] [BOLT] Fix mustSkip when symbol's name changed by BOLT (PR #99463)

[via llvm-commits]

lifengxiang1025 wrote:

When I use the flag `--skip-funcs-file`, I found it doesn't work. After debugging, i found symbol's name changed as foo/1 before running `mustSkip`.

https://github.com/llvm/llvm-project/pull/99463