Fixing a number of dart:html analyzer issues

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 9af468e7e6a9b6d33cfd694956bd83e94711bade..162858a9979dc395efb863e9d935d042370108f9 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -9772,7 +9772,8 @@ class _ElementFactoryProvider {
     switch (tag) {
       case 'td':
       case 'th':
-        element = _singleNode(_singleNode(table.rows).cells);
+        TableRowElement row = _singleNode(table.rows);
+        element = _singleNode(row.cells);
         break;
       case 'tr':
         element = _singleNode(table.rows);
@@ -11846,6 +11847,7 @@ class Geolocation native "*Geolocation" {
     return new _GeopositionWrapper(domPosition);
   }
 
+
   @JSName('clearWatch')
   @DomName('Geolocation.clearWatch')
   @DocsEditable
@@ -25732,8 +25734,10 @@ class Window extends EventTarget implements WindowBase native "@*DOMWindow" {
    * [animationFrame] again for the animation to continue.
    */
   Future<num> get animationFrame {
-    var completer = new Completer<int>();
-    requestAnimationFrame(completer.complete);
+    var completer = new Completer<num>();
+    requestAnimationFrame((time) {
+      completer.complete(time);
+    });
     return completer.future;
   }
 
@@ -29585,7 +29589,7 @@ abstract class CssClassSet implements Set<String> {
 
   Iterable<String> where(bool f(String element)) => readClasses().where(f);
 
-  Iterable expand(Iterable f(String element)) => readClasses.expand(f);
+  Iterable expand(Iterable f(String element)) => readClasses().expand(f);
 
   bool every(bool f(String element)) => readClasses().every(f);
 
@@ -32031,7 +32035,7 @@ class _WrappedList<E> implements List<E> {
 
   void set length(int newLength) { _list.length = newLength; }
 
-  void addLast(E value) { _list.addLast(value); }
+  void addLast(E value) { _list.add(value); }
 
   Iterable<E> get reversed => _list.reversed;