7ea539a4c5
Migrated multiple tests from unittest->test, fixed small strong mode issue in cross_frame_test. Bug: Change-Id: I1c504ab4ac45e487ff3d3d156416e579978adc20 Reviewed-on: https://dart-review.googlesource.com/4820 Reviewed-by: Terry Lucas <terry@google.com> Reviewed-by: Bob Nystrom <rnystrom@google.com>