[clang] [RFC] Perform lifetime bound checks for arguments to coroutine (PR #69360)

[Chuanqi Xu via cfe-commits]

https://github.com/ChuanqiXu9 commented:

Thanks for bringing this! I didn't notice the post in discourse and I'll put higher level comments there.

https://github.com/llvm/llvm-project/pull/69360