Coroutine scope is not always captured in coroutine stack frame

[nikita-nazarov]

For coroutine stack frame's this object sometimes you can't see L$0 in its field list.

Note

You won't be able to reproduce this example in the debugger, because synthetic this objects are not shown in the variables view. I tweaked the code to illustrate the problem.

Why is it important

In Kotlin debugger we need to remap this object from Continuation to CoroutineScope for coroutine stack frames. This remap is needed to keep information in the variables view consistent with type hints, and also without it, evaluation in some cases won't work properly. To solve the problem we try to get CoroutineScope from the completion field, however, I assume that it is better to use L$0 for this purpose.