[co19] Simple bounds tests enabled
[co19] Simple bounds tests enabled

Change-Id: I8016f271339c8fa2b0fba44aa04daf674ae15145
Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/164082
Reviewed-by: Alexander Thomas <29642742b6693024c89de8232f2e2542cf7eedf7@google.com>

dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk,dart-lang/sdk