[llvm] [coroutines] Use DILocation from new storage for hoisted dbg.declare (PR #75402)

[Wei Wang via llvm-commits]

apolloww wrote:

> It would be great if we would add a test case from that reproducer [here](https://github.com/llvm/llvm-project/pull/75104#issuecomment-1853497609).
> 
> We could start from the IR clang generates, and run llvm-reduce on that.

Sure. I'll add the repro to test.

https://github.com/llvm/llvm-project/pull/75402