[llvm] [BOLT] Use restored names in funcs-{, file-}no-regex (PR #127738)

[Amir Ayupov via llvm-commits]

aaupov wrote:

> > Since function names given via funcs-no-regex are supposed to be verbatim
> > and don't contain BOLT-added suffixes, the check should use "restored"
> > BinaryFunction names stripped of suffixes.
> 
> How are you going to achieve fine-grained control over local function selection?

Good point. Looks like it's better to fix bughunter script instead to achieve this, and emphasize that we expect suffixed names in all `*funcs*` options

https://github.com/llvm/llvm-project/pull/127738