Restore UriReferencedElement and its uri/uriOffset/uriEnd properties.

Restore UriReferencedElement and its uri/uriOffset/uriEnd properties.

This is a partial rollback of bdd69ccd6c330e4755a447964a1f1021be034f75,
it restores APIs and implementations, but does not restore its usages
in analyzer or analysis_server. Should be enough to make clients
temporary OK, but also keeps resynthesizing from Kernel working.

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

Committed: https://github.com/dart-lang/sdk/commit/ce4d7b18912b6c122d6f4e1bf7ada561dffde670

[Brian Wilkerson, 2017-07-21 22:06:04]

lgtm

[scheglov, 2017-07-22 00:00:00]

Description was changed from

==========
Restore UriReferencedElement and its uri/uriOffset/uriEnd properties.

This is a partial rollback of bdd69ccd6c330e4755a447964a1f1021be034f75,
it restores APIs and implementations, but does not restore its usages
in analyzer or analysis_server. Should be enough to make clients
temporary OK, but also keeps resynthesizing from Kernel working.

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

to

==========
Restore UriReferencedElement and its uri/uriOffset/uriEnd properties.

This is a partial rollback of bdd69ccd6c330e4755a447964a1f1021be034f75,
it restores APIs and implementations, but does not restore its usages
in analyzer or analysis_server. Should be enough to make clients
temporary OK, but also keeps resynthesizing from Kernel working.

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

Committed:
https://github.com/dart-lang/sdk/commit/ce4d7b18912b6c122d6f4e1bf7ada561dffde670
==========

[scheglov, 2017-07-22 00:00:02]

Committed patchset #1 (id:1) manually as
ce4d7b18912b6c122d6f4e1bf7ada561dffde670 (presubmit successful).