[Clang][MemProf] Add end-to-end test for PGHO rewriting#169243

melver merged 7 commits intomainllvm/llvm-project:mainfrom

users/melver/spr/clangmemprof-add-end-to-end-test-for-pgho-rewritingllvm/llvm-project:users/melver/spr/clangmemprof-add-end-to-end-test-for-pgho-rewritingCopy head branch name to clipboard