[llvm] [Coroutines][LazyCallGraph] resumes are not really SCC (PR #116285)

[Arthur Eubanks via llvm-commits]

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

PR lgtm, I'd remove the original PR description section and add some more notes on the spurious ref edge in the description

https://github.com/llvm/llvm-project/pull/116285