ba10df6611
* Update named configs for unit tests to Dart 2. * Bump json_rpc_2 in front_end package. * Use named configurations in unit tests. * Fix typing issues. Change-Id: Id3b393a0d2abe92c8eaec10fa8057fb35d18a4c6 Reviewed-on: https://dart-review.googlesource.com/67341 Reviewed-by: Jens Johansen <jensj@google.com>