1197e15a7e
This CL enables the avoid_void_async lint in the CFE, makes the needed changes and adds the missing `await` (because the lint `unawaited_futures` doesn't react to void async methods). Change-Id: Iffc1f173badd3c2d48356ee02e81a9aed492ce5d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/213481 Commit-Queue: Jens Johansen <jensj@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com>