Flush deferred action queue

Flush deferred action queue

It is possible for deferred actions to be queued without enqueing
classes.  This can happen when resolving a typedef for mirrors - a
cyclic check action may be added as the only change.

TBR=johnniwinther@google.com

Committed: https://github.com/dart-lang/sdk/commit/8eedb9c6527f955413e47c9350d3c5114cd89942

[sra1, 2017-02-28 03:12:36]

onEmptyQueue calls the mirrors code which resolves an otherwise unreferenced
typedef which adds a deferred item to check the typedef for cycles.

[sra1, 2017-02-28 03:13:05]

Description was changed from

==========
Flush deferred action queue

It is possible for deferred actions to be queued without enqueing
classes.  This can happen when resolving a typedef for mirrors - a
cyclic check action may be added as the only change.

TBR=johnniwinther@google.com
==========

to

==========
Flush deferred action queue

It is possible for deferred actions to be queued without enqueing
classes.  This can happen when resolving a typedef for mirrors - a
cyclic check action may be added as the only change.

TBR=johnniwinther@google.com

Committed:
https://github.com/dart-lang/sdk/commit/8eedb9c6527f955413e47c9350d3c5114cd89942
==========

[sra1, 2017-02-28 03:13:06]

Committed patchset #1 (id:1) manually as
8eedb9c6527f955413e47c9350d3c5114cd89942 (presubmit successful).

[Johnni Winther, 2017-02-28 09:36:47]

lgtm