[llvm] [MemProf] Re-enable cloning of callsites in recursive cycles with fixes (PR #125947)

[Snehasish Kumar via llvm-commits]

https://github.com/snehasish approved this pull request.

LGTM. I think we need to update this [test](http://github.com/llvm/llvm-project/blob/main/llvm/test/Transforms/MemProfContextDisambiguation/recursive.ll) ([buildkite](https://buildkite.com/llvm-project/github-pull-requests/builds/144058)).



https://github.com/llvm/llvm-project/pull/125947