7f0bd5e811
Changes debugger.cc to use the 'lazy async stack' mechanism for unwinding async stacks, which means we no longer have to manually keep track of the caller. This also allows us to get rid of _asyncStarListenHelper. Bug: https://github.com/dart-lang/sdk/issues/42457 Change-Id: I536e9da4af275998140ae5f05e3a43e07c77cfc7 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/167561 Commit-Queue: Clement Skau <cskau@google.com> Reviewed-by: Martin Kustermann <kustermann@google.com>