Fixing some SVG collections not working on Dartium

tests/html/svgelement_test.dart

 // Copyright (c) 2011, 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.
 
 library SvgElementTest;
 import "package:expect/expect.dart";
 import '../../pkg/unittest/lib/unittest.dart';
 import '../../pkg/unittest/lib/html_individual_config.dart';
 import 'dart:html';
 import 'dart:svg' as svg;
@@ skipping 421 matching lines @@
       root.append(element);
 
       document.body.append(root);
 
       var rect = element.getBoundingClientRect();
       expect(rect is Rect, isTrue);
       expect(rect.width, closeTo(100, 1));
       expect(rect.height, closeTo(100, 1));
     });
   });
+
+  group('PathElement', () {
+    test('pathSegList', () {
+      svg.PathElement path =
+          new svg.SvgElement.svg('<path d="M 100 100 L 300 100 L 200 300 z"/>');
+      for (var seg in path.pathSegList) {
+        expect(seg is svg.PathSeg, isTrue);
+      }
+    });
+  });
 }