[llvm] Reapply "[coro][CoroSplit] Use `llvm.lifetime.end` to compute putting objects on the frame vs the stack (#90265) (PR #91372)

[Nikita Popov via llvm-commits]

nikic wrote:

> LGTM. Maybe @nikic wants to have perf test.

I don't see any compile-time impact with this version anymore.

https://github.com/llvm/llvm-project/pull/91372