fix bots: do not analyze front_end when analyzing dart2js, they need to be analyzed with incompatible options (strong vs not-strong). pkg/front_end is anyways analyzed in the front_end tests, so I believe this is safe to exclude here.
fix bots: do not analyze front_end when analyzing dart2js, they need to be
analyzed with incompatible options (strong vs not-strong). pkg/front_end is
anyways analyzed in the front_end tests, so I believe this is safe to exclude
here.

BUG=

Review-Url: https://codereview.chromium.org/2853183002 .

dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-lang/sdk,dart-lang/sdk,dart-archive/dart-sdk,dart-archive/dart-sdk,dartino/dart-sdk,dartino/dart-sdk