design: view instantiation test

modules/facade/src/dom.dart

@@ -1,6 +1,7 @@
 library angular.core.facade.dom;
 
 import 'dart:html';
+import 'dart:js' show JsObject;
 
 export 'dart:html' show DocumentFragment, Node, Element, TemplateElement, Text;
 
@@ -28,4 +29,13 @@ class DOM {
   static clone(Node node) {
     return node.clone(true);
   }
+  static setProperty(Element element, String name, value) {
+    new JsObject.fromBrowserObject(element)[name] = value;
+  }
+  static getElementsByClassName(Element element, String name) {
+    return element.getElementsByClassName(name);
+  }
+  static getElementsByTagName(Element element, String name) {
+    return element.querySelectorAll(name);
+  }
 }

modules/facade/src/dom.es6

@@ -28,4 +28,13 @@ export class DOM {
   static clone(node:Node) {
     return node.cloneNode(true);
   }
+  static setProperty(element:Element, name:string, value) {
+    element[name] = value;
+  }
+  static getElementsByClassName(element:Element, name:string) {
+    return element.getElementsByClassName(name);
+  }
+  static getElementsByTagName(element:Element, name:string) {
+    return element.getElementsByTagName(name);
+  }
 }

modules/facade/src/lang.dart

@@ -57,3 +57,4 @@ class NumberWrapper {
     return double.parse(text);
   }
 }
+