[llvm] [MemProf] Update the DISubprogram linkageName for clones (PR #145385)

[Snehasish Kumar via llvm-commits]

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

lgtm, failures seem unrelated.

Also since you asked about function specialization earlier. Perhaps [this](https://github.com/llvm/llvm-project/blob/main/llvm/lib/Transforms/IPO/FunctionSpecialization.cpp#L865) code needs to be updated?

https://github.com/llvm/llvm-project/pull/145385