Restore "Avoid to run dart code during paused_on_exit"

Restore "Avoid to run dart code during paused_on_exit"

This restores https://github.com/dart-lang/sdk/commit/20066b625a723d0bca4a13afe408e9d6b1442e0e
That was reverted in https://github.com/dart-lang/sdk/commit/ea3526344ae8460ea50cd73b94904eddda816182
Related https://github.com/dart-lang/sdk/issues/30555

R=rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/cdd3f4f9e5ca37b6c6eb9789b1b3ceaa37eae59f

[cbernaschina, 2017-08-29 19:46:07]

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

[rmacnak, 2017-08-29 20:01:10]

lgtm

[cbernaschina, 2017-08-29 20:02:15]

Description was changed from

==========
Restore "Avoid to run dart code during paused_on_exit"

This restores
https://github.com/dart-lang/sdk/commit/20066b625a723d0bca4a13afe408e9d6b1442e0e
That was reverted in
https://github.com/dart-lang/sdk/commit/ea3526344ae8460ea50cd73b94904eddda816182
Related https://github.com/dart-lang/sdk/issues/30555
==========

to

==========
Restore "Avoid to run dart code during paused_on_exit"

This restores
https://github.com/dart-lang/sdk/commit/20066b625a723d0bca4a13afe408e9d6b1442e0e
That was reverted in
https://github.com/dart-lang/sdk/commit/ea3526344ae8460ea50cd73b94904eddda816182
Related https://github.com/dart-lang/sdk/issues/30555

R=rmacnak@google.com

Committed:
https://github.com/dart-lang/sdk/commit/cdd3f4f9e5ca37b6c6eb9789b1b3ceaa37eae59f
==========

[cbernaschina, 2017-08-29 20:02:17]

Committed patchset #1 (id:1) manually as
cdd3f4f9e5ca37b6c6eb9789b1b3ceaa37eae59f (presubmit successful).