1. Added new flag verify_gc_contains and moved all the asserts that do a

1. Added new flag verify_gc_contains and moved all the asserts that do a
   heap contains verification under it. This flag is turned on automatically
   when verify_before_gc, verify_after_gc or verify_on_transition is
   specified. This should speed up the debug builds on the bot.
   A dart2js build line for instance goes from 2357.526 seconds
   to 184.22 seconds

2. Verify heap on shutdown only under the flag verify_on_transition.

R=fschneider@google.com

Committed: https://github.com/dart-lang/sdk/commit/793e4b89e65176b321e6baf07e42662671188cc0

[siva, 2017-01-12 22:13:44]

asiva@google.com changed reviewers:
+ fschneider@google.com

[Florian Schneider, 2017-01-12 22:23:54]

LGtm

[siva, 2017-01-13 00:03:26]

Description was changed from

==========
1. Added new flag verify_gc_contains and moved all the asserts that do a
   heap contains verification under it. This flag is turned on automatically
   when verify_before_gc, verify_after_gc or verify_on_transition is
   specified. This should speed up the debug builds on the bot.
   A dart2js build line for instance goes from 2357.526 seconds
   to 184.22 seconds

2. Verify heap on shutdown only under the flag verify_on_transition.
==========

to

==========
1. Added new flag verify_gc_contains and moved all the asserts that do a
   heap contains verification under it. This flag is turned on automatically
   when verify_before_gc, verify_after_gc or verify_on_transition is
   specified. This should speed up the debug builds on the bot.
   A dart2js build line for instance goes from 2357.526 seconds
   to 184.22 seconds

2. Verify heap on shutdown only under the flag verify_on_transition.

R=fschneider@google.com

Committed:
https://github.com/dart-lang/sdk/commit/793e4b89e65176b321e6baf07e42662671188cc0
==========

[siva, 2017-01-13 00:03:27]

Committed patchset #1 (id:1) manually as
793e4b89e65176b321e6baf07e42662671188cc0 (presubmit successful).