GN: Fix build

GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.

This change also quiets output from invoking Dart to follow the
rule of GN builds that a successful build generates no output.

Committed: https://github.com/dart-lang/sdk/commit/c39525802e8438509cea17e25f0081068208596c

[zra, 2016-10-22 07:04:30]

Description was changed from

==========
GN: Fix build
==========

to

==========
GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.
==========

[zra, 2016-10-22 07:04:44]

zra@google.com changed reviewers:
+ rmacnak@google.com

[zra, 2016-10-22 07:04:45]

TBR

[zra, 2016-10-22 07:05:20]

Description was changed from

==========
GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.
==========

to

==========
GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.

This change also quiets output from invoking Dart to follow the
rule of GN builds that a successful build generates no output.
==========

[zra, 2016-10-22 07:05:44]

Description was changed from

==========
GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.

This change also quiets output from invoking Dart to follow the
rule of GN builds that a successful build generates no output.
==========

to

==========
GN: Fix build

GN is unhappy when a rule that consumes a file generated by
another rule doesn't depend directly on that rule.

This change also quiets output from invoking Dart to follow the
rule of GN builds that a successful build generates no output.

Committed:
https://github.com/dart-lang/sdk/commit/c39525802e8438509cea17e25f0081068208596c
==========

[zra, 2016-10-22 07:05:45]

Committed patchset #2 (id:20001) manually as
c39525802e8438509cea17e25f0081068208596c (presubmit successful).

[rmacnak, 2016-10-24 16:12:26]

LGTM

I see that the bot's script uses gn --check but build.py doesn't pass --check.