[llvm] [MemProf] Add v4 which contains CalleeGuids to CallSiteInfo. (PR #137394)

[Snehasish Kumar via llvm-commits]

https://github.com/snehasish commented:

Thanks for the reviews, I'll verify the profile size changes with some large workloads and report back.

https://github.com/llvm/llvm-project/pull/137394