Fix issues in name resolution

Fix issues in name resolution

Looking up a name x in the library scope or in a prefix can also return
the setter name x=. There were several situations that were not handled
right.

- a getter x and a setter x= should not result in a duplicate name
  error (and thus a resolution error at runtime).

- when looking for an untangled name x but a setter x= is found first,
  keep looking for x.


BUG=25625
R=regis@google.com

Committed: https://github.com/dart-lang/sdk/commit/5a0a097188532a7348040499aee19695173f67cf

[hausner, 2016-03-02 16:53:28]

Description was changed from

==========
Fix issues in name resolution

Looking up a name x in the library scope or in a prefix can also return
the setter name x=. There were several situations that were not handled
right.

- a getter x and a setter x= should not result in a duplicate name
  error (and thus a resolution error at runtime).

- when looking for an untangled name x but a setter x= is found first,
  keep looking for x.


BUG=25625
==========

to

==========
Fix issues in name resolution

Looking up a name x in the library scope or in a prefix can also return
the setter name x=. There were several situations that were not handled
right.

- a getter x and a setter x= should not result in a duplicate name
  error (and thus a resolution error at runtime).

- when looking for an untangled name x but a setter x= is found first,
  keep looking for x.


BUG=25625
==========

[hausner, 2016-03-02 16:53:28]

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

[regis, 2016-03-02 17:53:47]

LGTM

[hausner, 2016-03-02 18:44:32]

Description was changed from

==========
Fix issues in name resolution

Looking up a name x in the library scope or in a prefix can also return
the setter name x=. There were several situations that were not handled
right.

- a getter x and a setter x= should not result in a duplicate name
  error (and thus a resolution error at runtime).

- when looking for an untangled name x but a setter x= is found first,
  keep looking for x.


BUG=25625
==========

to

==========
Fix issues in name resolution

Looking up a name x in the library scope or in a prefix can also return
the setter name x=. There were several situations that were not handled
right.

- a getter x and a setter x= should not result in a duplicate name
  error (and thus a resolution error at runtime).

- when looking for an untangled name x but a setter x= is found first,
  keep looking for x.


BUG=25625
R=regis@google.com

Committed:
https://github.com/dart-lang/sdk/commit/5a0a097188532a7348040499aee19695173f67cf
==========

[hausner, 2016-03-02 18:44:36]

Committed patchset #2 (id:20001) manually as
5a0a097188532a7348040499aee19695173f67cf (presubmit successful).