42e6dbd9d4
`isSynthetic` was already deprecated, but now we have a replacement. Change-Id: I187207557e9ee2de5d819500f2b377886044fb9f Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/479180 Commit-Queue: Konstantin Shcheglov <scheglov@google.com> Reviewed-by: Johnni Winther <johnniwinther@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>