Fix crash when setting breakpoint in Observatory

Fix crash when setting breakpoint in Observatory

Fix bug in code that determines end token pos of classes, handle
typedef classes correctly.

BUG=25880
R=floitsch@google.com, johnmccutchan@google.com

Committed: https://github.com/dart-lang/sdk/commit/5db2c56b5bb5c7e18146f11e2d4baf07e34d5fbb

[hausner, 2016-03-09 01:11:24]

Description was changed from

==========
Fix crash when setting breakpoint in Observatory

Fix bug in code that determines end token pos of classes, handle
typedef classes correctly.

BUG=25880
==========

to

==========
Fix crash when setting breakpoint in Observatory

Fix bug in code that determines end token pos of classes, handle
typedef classes correctly.

BUG=25880
==========

[hausner, 2016-03-09 01:11:24]

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

[floitsch, 2016-03-09 12:06:06]

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

[floitsch, 2016-03-09 12:06:07]

LGTM.
No new test?

[Cutch, 2016-03-09 16:52:17]

lgtm

[hausner, 2016-03-09 16:55:58]

Description was changed from

==========
Fix crash when setting breakpoint in Observatory

Fix bug in code that determines end token pos of classes, handle
typedef classes correctly.

BUG=25880
==========

to

==========
Fix crash when setting breakpoint in Observatory

Fix bug in code that determines end token pos of classes, handle
typedef classes correctly.

BUG=25880
R=floitsch@google.com, johnmccutchan@google.com

Committed:
https://github.com/dart-lang/sdk/commit/5db2c56b5bb5c7e18146f11e2d4baf07e34d5fbb
==========

[hausner, 2016-03-09 16:55:59]

Committed patchset #1 (id:1) manually as
5db2c56b5bb5c7e18146f11e2d4baf07e34d5fbb (presubmit successful).

[hausner, 2016-03-09 16:56:48]

Thank you. I think a test would be overkill here.