fix bots: do not analyze front_end when analyzing dart2js, they need to be

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=

Committed: https://github.com/dart-lang/sdk/commit/7ece6d94a2443f4c5028b729d1edd850962c5e40

[Siggi Cherem (dart-lang), 2017-05-02 02:39:25]

Description was changed from

==========
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=
==========

to

==========
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=
==========

[Siggi Cherem (dart-lang), 2017-05-02 02:39:26]

sigmund@google.com changed reviewers:
+ sra@google.com

[Siggi Cherem (dart-lang), 2017-05-02 02:39:38]

TBR

[Siggi Cherem (dart-lang), 2017-05-02 02:39:55]

Description was changed from

==========
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=
==========

to

==========
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=

Committed:
https://github.com/dart-lang/sdk/commit/7ece6d94a2443f4c5028b729d1edd850962c5e40
==========

[Siggi Cherem (dart-lang), 2017-05-02 02:39:56]

Committed patchset #1 (id:1) manually as
7ece6d94a2443f4c5028b729d1edd850962c5e40 (presubmit successful).

[sra1, 2017-05-02 02:52:32]

lgtm