[llvm] [Coroutines] Allocas used after @coro.end should not go in the coro frame (PR #127524)

[Chuanqi Xu via llvm-commits]

https://github.com/ChuanqiXu9 commented:

For coro-debug.ll, I did some historic search and it shows the code come from 2017. So I guess it may be out of date simply.

For coro-lifetime-end.ll, I think the lifetime uses are special. We'd better to not count them as real uses.

https://github.com/llvm/llvm-project/pull/127524