784ad29470
This updates dartfix to more narrowly verify the analysis server protocol version and print instructions for the user if the protocol version expected by dartfix is incompatible with the current Dart SDK. This is necessary because the edit.dartfix protocol is experimental and will continue to evolve. Change-Id: Ib31eb594a8a94416cb4fc676e7da9150f8c99b6a Reviewed-on: https://dart-review.googlesource.com/c/84780 Commit-Queue: Dan Rubel <danrubel@google.com> Reviewed-by: Brian Wilkerson <brianwilkerson@google.com>