[clang] [llvm] [mlir] [debuginfo][coro] Emit debug info labels for coroutine resume points (PR #141937)

[Adrian Vogelsgesang via llvm-commits]

vogelsgesang wrote:

Note that this also influences Swift. The new labels will also be available in Swift. I hope this might also be useful for Swift to improve debugging experience, and hence is actually a good thing?

Not sure, though. If you want, I could also skip emitting those labels for Swift.

CC @adrian-prantl

https://github.com/llvm/llvm-project/pull/141937