Copy lib/dom tests that use dart:html to lib/html.

tests/dom/svg_2_test.dart

-#library('SVG2Test');
-#import('../../lib/unittest/unittest.dart');
-#import('../../lib/unittest/html_config.dart');
-#import('dart:html');
-
-// Test that SVG elements explicitly implement the IDL interfaces (is-checks
-// only, see SVGTest3 for behavioural tests).
-
-main() {
-
-  insertTestDiv() {
-    var element = new Element.tag('div');
-    element.innerHTML = @'''
-<svg id='svg1' width='200' height='100'>
-<rect id='rect1' x='10' y='20' width='130' height='40' rx='5'fill='blue'></rect>
-</svg>
-''';
-    document.body.nodes.add(element);
-    return element;
-  }
-
-  useHtmlConfiguration();
-
-  test('rect_isChecks', () {
-      var div = insertTestDiv();
-      var r = document.query('#rect1');
-
-      // Direct inheritance chain
-      Expect.isTrue(r is SVGElement);
-      Expect.isTrue(r is Element);
-      Expect.isTrue(r is Node);
-
-      // Other implemented interfaces.
-      Expect.isTrue(r is SVGTests);
-      Expect.isTrue(r is SVGLangSpace);
-      Expect.isTrue(r is SVGExternalResourcesRequired);
-      Expect.isTrue(r is SVGStylable);
-      Expect.isTrue(r is SVGTransformable);
-      Expect.isTrue(r is SVGLocatable);
-
-      // Interfaces not implemented.
-      Expect.isFalse(r is SVGNumber);
-      Expect.isFalse(r is SVGRect);
-      Expect.isFalse(r is SVGSVGElement);
-
-      div.remove();
-    });
-}