llvm-project

b1030373 - [Coroutines] [NFCI] Don't search the DILocalVariable for __promise when constructing the debug varaible for __coro_frame (#105626)

[Coroutines] [NFCI] Don't search the DILocalVariable for __promise when constructing the debug varaible for __coro_frame (#105626) As the title mentioned, do not search for the DILocalVariable for __promise when constructing the debug variable for __coro_frame. This should make sense because the debug variable of `__coro_frame` shouldn't dependent on the debug variable of `__promise`. And actually, it is not. Currently, we search the debug variable for `__promise` only because we want to get the debug location and the debug scope for the `__promise`. However, we can construct the debug location directly from the debug scope of the being compiled function. Then it is not necessary any more to search the `__promise` variable. And this patch makes the codes to construct the debug variable for `__coro_frame` to be more stable. Now we will always be able to construct the debug variable for the coroutine frame no matter if we found the debug variable for the __promise or not. This patch is not strictly NFC but it is intended to not affect any end users.