[Coroutines] Alias Analysis can't think the coroutine frame ptr may be alias with the local variables

[ChuanqiXu9]

This comes from #56301. And this is the direct issue for the report.

See https://discourse.llvm.org/t/rfc-a-new-aapass-for-coroutines-or-a-simple-workaround/72336 for summarized analysis.

[llvmbot]

@llvm/issue-subscribers-coroutines