runtime/pprof: incorrect function names for generics functions [1.21 backport]

[gopherbot]

@prattmic requested issue #64528 to be considered for backport to the next 1.21 minor release.

Thanks for the report and fix. I think this warrants a backport.

@gopherbot Please backport to 1.21. This can create invalid profiles when using generics with no practical workaround.

[gopherbot]

Change https://go.dev/cl/549535 mentions this issue: [release-branch.go1.21] runtime/pprof: fix generics function names

[gopherbot]

Closed by merging ad1ec60 to release-branch.go1.21.

[S-YOU]

Currently If you pass large struct as Type, pprof show all if its definition like this. I will create an Issue too.