[llvm] [MemProf] Don't skip direct recursion in function summary (PR #78264)

[Teresa Johnson via llvm-commits]

teresajohnson wrote:

See my reply on the Discourse thread just now here: https://discourse.llvm.org/t/rfc-ir-metadata-format-for-memprof/59165/27?u=teresajohnson

I remembered the reason I was handling direct recursion differently. I wonder if we can fix the assert that was firing in this case (and check that we do get the expected cloning)?

https://github.com/llvm/llvm-project/pull/78264