Don't allow oob message interrupts while executing constant expressions in the parser.

Don't allow oob message interrupts while executing constant expressions in the parser.

When this happens we can get complaints about circular dependencies
that don't really exist.  We were seeing this occasionally on
developer_extension_test.dart.

BUG=
R=rmacnak@google.com

Committed: https://github.com/dart-lang/sdk/commit/2b74ea304d0898e92dda8a04273e22375b7e75e0

[turnidge, 2016-02-04 21:40:17]

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

[rmacnak, 2016-02-08 20:38:03]

lgtm

[Cutch, 2016-02-09 17:05:51]

johnmccutchan@google.com changed reviewers:
+ johnmccutchan@google.com

[Cutch, 2016-02-09 17:05:51]

https://codereview.chromium.org/1666323002/diff/40001/runtime/vm/compiler.cc
File runtime/vm/compiler.cc (right):

https://codereview.chromium.org/1666323002/diff/40001/runtime/vm/compiler.cc#...
runtime/vm/compiler.cc:1643: isolate->DeferMessageInterrupts();
DBC: Consider adding a scope object helper class.

[turnidge, 2016-02-09 18:04:38]

Description was changed from

==========
Don't allow oob message interrupts while executing constant expressions in the
parser.

When this happens we can get complaints about circular dependencies
that don't really exist.  We were seeing this occasionally on
developer_extension_test.dart.

BUG=
==========

to

==========
Don't allow oob message interrupts while executing constant expressions in the
parser.

When this happens we can get complaints about circular dependencies
that don't really exist.  We were seeing this occasionally on
developer_extension_test.dart.

BUG=
R=rmacnak@google.com

Committed:
https://github.com/dart-lang/sdk/commit/2b74ea304d0898e92dda8a04273e22375b7e75e0
==========

[turnidge, 2016-02-09 18:04:39]

Committed patchset #5 (id:80001) manually as
2b74ea304d0898e92dda8a04273e22375b7e75e0 (presubmit successful).