[llvm] [memprof] Dump call site matching information (PR #125130)

[Teresa Johnson via llvm-commits]

https://github.com/teresajohnson commented:

You should probably clarify in the description that this will just be the full profiled context of frames on the interior callsite (i.e. including all possible inlined frames). Unlike in the allocation case where we have the whole allocation context.

Also, can you add a test?

https://github.com/llvm/llvm-project/pull/125130