44e11d9dd4
This will be used to allow multiple top-level declarations to be moved together. Change-Id: Ib1c59e9ff3e01891f8cb29b74e78183c36b1f02d Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/273828 Reviewed-by: Konstantin Shcheglov <scheglov@google.com> Commit-Queue: Brian Wilkerson <brianwilkerson@google.com>