Alexander Aprelev c01cad3491
Fix flutter test --preview-dart-2 following last dart roll. (#15233)
* Fix `flutter test --preview-dart-2`  following last dart roll.

Incremental compiler maintains single incremental dill file, so for every test compilation that dill file has to be copied away for execution.

* Fix lints
2018-03-07 06:27:58 -08:00
..
2018-02-06 09:00:11 +01:00