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

tests/dom/serialized_script_value_test.dart

-#library('SerializedScriptValueTest');
-#import('../../lib/unittest/unittest.dart');
-#import('../../lib/unittest/html_config.dart');
-#import('dart:html');
-#import('utils.dart');
-
-serializationTest(name, value) => test(name, () {
-      // To check how value is serialized and deserialized, we create a MessageEvent.
-    final event = document.$dom_createEvent('MessageEvent');
-    event.initMessageEvent('', false, false, value, '', '', window, []);
-    verifyGraph(value, event.data);
-});
-
-
-main() {
-  useHtmlConfiguration();
-
-  serializationTest('null', null);
-  serializationTest('int', 1);
-  serializationTest('double', 2.39);
-  serializationTest('string', 'hey!');
-
-  final simpleMap = {'a': 100, 'b': 's'};
-  final dagMap = { 'x': simpleMap, 'y': simpleMap };
-  final cyclicMap = { 'b': dagMap };
-  cyclicMap['a'] = cyclicMap;
-  serializationTest('simple map', simpleMap);
-  serializationTest('dag map', dagMap);
-  serializationTest('cyclic map', cyclicMap);
-
-  final simpleList = [ 100, 's'];
-  final dagList = [ simpleList, simpleList ];
-  final cyclicList = [ dagList ];
-  cyclicList.add(cyclicList);
-  serializationTest('simple list', simpleList);
-  serializationTest('dag list', dagList);
-  serializationTest('cyclic list', cyclicList);
-}