Better type for _match argument in AttributeMatch

Better type for _match argument in AttributeMatch

This fixes two warnings in analyze_api_test:

R=jacobr@google.com

sdk/lib/html/dart2js/html_dart2js.dart:41478:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == null;
                              ^^^^^^^^^^^^^^^^^^
sdk/lib/html/dart2js/html_dart2js.dart:41514:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == _namespace;
                              ^^^^^^^^^^^^^^^^^^
Committed: https://github.com/dart-lang/sdk/commit/91f9ce3f71d55c4206f128dc8527e073d873b1d7

[sra1, 2017-05-11 22:37:41]

sra@google.com changed reviewers:
+ terry@google.com

[sra1, 2017-05-11 22:56:26]

Patchset #1 (id:1) has been deleted

[Jacob, 2017-05-11 23:43:55]

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

[Jacob, 2017-05-11 23:43:56]

Dartium changes look safe. I'd test them using the buildbot.

lgtm

[sra1, 2017-05-11 23:59:32]

Description was changed from

==========
Better type for _match argument in AttributeMatch

This fixes two warnings in analyze_api_test:

sdk/lib/html/dart2js/html_dart2js.dart:41478:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == null;
                              ^^^^^^^^^^^^^^^^^^
sdk/lib/html/dart2js/html_dart2js.dart:41514:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == _namespace;
                              ^^^^^^^^^^^^^^^^^^
==========

to

==========
Better type for _match argument in AttributeMatch

This fixes two warnings in analyze_api_test:

R=jacobr@google.com

sdk/lib/html/dart2js/html_dart2js.dart:41478:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == null;
                              ^^^^^^^^^^^^^^^^^^
sdk/lib/html/dart2js/html_dart2js.dart:41514:31:
Warning: The getter '_namespaceUri' is not defined for the class 'Node'.
  bool _matches(Node node) => node._namespaceUri == _namespace;
                              ^^^^^^^^^^^^^^^^^^
Committed:
https://github.com/dart-lang/sdk/commit/91f9ce3f71d55c4206f128dc8527e073d873b1d7
==========

[sra1, 2017-05-11 23:59:33]

Committed patchset #1 (id:20001) manually as
91f9ce3f71d55c4206f128dc8527e073d873b1d7 (presubmit successful).