dart2js native mixin application should extend 'Interface', not 'Object'

sdk/lib/svg/dart2js/svg_dart2js.dart

 library dart.dom.svg;
 
 import 'dart:async';
 import 'dart:collection';
 import 'dart:_collection-dev';
 import 'dart:html';
 import 'dart:html_common';
 import 'dart:_js_helper' show Creates, Returns, JavaScriptIndexingBehavior, JSName;
 import 'dart:_foreign_helper' show JS;
+import 'dart:_interceptors' show Interceptor;
 // DO NOT EDIT - unless you are editing documentation as per:
 // https://code.google.com/p/dart/wiki/ContributingHTMLDocumentation
 // Auto-generated dart:svg library.
 
 
 
 
 
-
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 final _START_TAG_REGEXP = new RegExp('<(\\w+)');
 
 class _SvgElementFactoryProvider {
   static SvgElement createSvgElement_tag(String tag) {
     final Element temp =
@@ skipping 2970 matching lines @@
   @DocsEditable
   void newValueSpecifiedUnits(int unitType, num valueInSpecifiedUnits) native;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGLengthList')
-class LengthList extends Object with ListMixin<Length>, ImmutableListMixin<Length> implements JavaScriptIndexingBehavior, List<Length> native "SVGLengthList" {
+class LengthList extends Interceptor with ListMixin<Length>, ImmutableListMixin<Length> implements JavaScriptIndexingBehavior, List<Length> native "SVGLengthList" {
 
   @DomName('SVGLengthList.numberOfItems')
   @DocsEditable
   final int numberOfItems;
 
   Length operator[](int index) => this.getItem(index);
 
   void operator[]=(int index, Length value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 440 matching lines @@
   @DocsEditable
   num value;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGNumberList')
-class NumberList extends Object with ListMixin<Number>, ImmutableListMixin<Number> implements JavaScriptIndexingBehavior, List<Number> native "SVGNumberList" {
+class NumberList extends Interceptor with ListMixin<Number>, ImmutableListMixin<Number> implements JavaScriptIndexingBehavior, List<Number> native "SVGNumberList" {
 
   @DomName('SVGNumberList.numberOfItems')
   @DocsEditable
   final int numberOfItems;
 
   Number operator[](int index) => this.getItem(index);
 
   void operator[]=(int index, Number value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 671 matching lines @@
   @DocsEditable
   num y;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGPathSegList')
-class PathSegList extends Object with ListMixin<PathSeg>, ImmutableListMixin<PathSeg> implements JavaScriptIndexingBehavior, List<PathSeg> native "SVGPathSegList" {
+class PathSegList extends Interceptor with ListMixin<PathSeg>, ImmutableListMixin<PathSeg> implements JavaScriptIndexingBehavior, List<PathSeg> native "SVGPathSegList" {
 
   @DomName('SVGPathSegList.numberOfItems')
   @DocsEditable
   final int numberOfItems;
 
   PathSeg operator[](int index) => this.getItem(index);
 
   void operator[]=(int index, PathSeg value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 701 matching lines @@
   @DocsEditable
   final AnimatedNumber gradientOffset;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGStringList')
-class StringList extends Object with ListMixin<String>, ImmutableListMixin<String> implements JavaScriptIndexingBehavior, List<String> native "SVGStringList" {
+class StringList extends Interceptor with ListMixin<String>, ImmutableListMixin<String> implements JavaScriptIndexingBehavior, List<String> native "SVGStringList" {
 
   @DomName('SVGStringList.numberOfItems')
   @DocsEditable
   final int numberOfItems;
 
   String operator[](int index) => this.getItem(index);
 
   void operator[]=(int index, String value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 974 matching lines @@
   @DocsEditable
   void setTranslate(num tx, num ty) native;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGTransformList')
-class TransformList extends Object with ListMixin<Transform>, ImmutableListMixin<Transform> implements List<Transform>, JavaScriptIndexingBehavior native "SVGTransformList" {
+class TransformList extends Interceptor with ListMixin<Transform>, ImmutableListMixin<Transform> implements List<Transform>, JavaScriptIndexingBehavior native "SVGTransformList" {
 
   @DomName('SVGTransformList.numberOfItems')
   @DocsEditable
   final int numberOfItems;
 
   Transform operator[](int index) => this.getItem(index);
 
   void operator[]=(int index, Transform value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 335 matching lines @@
   @DocsEditable
   final Rect zoomRectScreen;
 }
 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 
 @DocsEditable
 @DomName('SVGElementInstanceList')
-class _ElementInstanceList extends Object with ListMixin<ElementInstance>, ImmutableListMixin<ElementInstance> implements JavaScriptIndexingBehavior, List<ElementInstance> native "SVGElementInstanceList" {
+class _ElementInstanceList extends Interceptor with ListMixin<ElementInstance>, ImmutableListMixin<ElementInstance> implements JavaScriptIndexingBehavior, List<ElementInstance> native "SVGElementInstanceList" {
 
   @DomName('SVGElementInstanceList.length')
   @DocsEditable
   int get length => JS("int", "#.length", this);
 
   ElementInstance operator[](int index) => this.item(index);
 
   void operator[]=(int index, ElementInstance value) {
     throw new UnsupportedError("Cannot assign element of immutable List.");
   }
@@ skipping 280 matching lines @@
 
 
 @DocsEditable
 @DomName('SVGVKernElement')
 abstract class _SVGVKernElement extends SvgElement native "SVGVKernElement" {
 
   @DomName('SVGVKernElement.SVGVKernElement')
   @DocsEditable
   factory _SVGVKernElement() => _SvgElementFactoryProvider.createSvgElement_tag("vkern");
 }