Don't schedule SOURCE_KIND computation when it is know already.

Don't schedule SOURCE_KIND computation when it is know already.

This fixes the problem when after limited invalidation we put the
changed source into the unknownSourceQueue, and schedule computation of
SOURCE_KIND, which actually never happens, because it is already valid.

The limited invalidation test will follow in a sepatate CL, because
it depends on fixing the modificationTime problem I sent for review
earlier.

R=brianwilkerson@google.com
BUG=

Committed: https://github.com/dart-lang/sdk/commit/111cd73778675a7a29bc03e2ef6ecda846167de4

[Brian Wilkerson, 2016-07-18 13:36:23]

lgtm

[scheglov, 2016-07-18 15:28:38]

Description was changed from

==========
Don't schedule SOURCE_KIND computation when it is know already.

This fixes the problem when after limited invalidation we put the
changed source into the unknownSourceQueue, and schedule computation of
SOURCE_KIND, which actually never happens, because it is already valid.

The limited invalidation test will follow in a sepatate CL, because
it depends on fixing the modificationTime problem I sent for review
earlier.

R=brianwilkerson@google.com
BUG=
==========

to

==========
Don't schedule SOURCE_KIND computation when it is know already.

This fixes the problem when after limited invalidation we put the
changed source into the unknownSourceQueue, and schedule computation of
SOURCE_KIND, which actually never happens, because it is already valid.

The limited invalidation test will follow in a sepatate CL, because
it depends on fixing the modificationTime problem I sent for review
earlier.

R=brianwilkerson@google.com
BUG=

Committed:
https://github.com/dart-lang/sdk/commit/111cd73778675a7a29bc03e2ef6ecda846167de4
==========

[scheglov, 2016-07-18 15:28:39]

Committed patchset #1 (id:1) manually as
111cd73778675a7a29bc03e2ef6ecda846167de4 (presubmit successful).