Clean up a bunch of our Dart code.

sky/sdk/lib/framework/components2/icon_button.dart

Index: sky/sdk/lib/framework/components2/icon_button.dart
diff --git a/sky/sdk/lib/framework/components2/icon_button.dart b/sky/sdk/lib/framework/components2/icon_button.dart
index 9fc79dee59728907e7c1a0627d1d9e335e7a8d94..b7b7deefcdd60c9a3a2370216d3dba4d22a7bff2 100644
--- a/sky/sdk/lib/framework/components2/icon_button.dart
+++ b/sky/sdk/lib/framework/components2/icon_button.dart
@@ -7,12 +7,13 @@ import '../rendering/box.dart';
 import 'icon.dart';
 
 class IconButton extends Component {
-  String icon;
-  GestureEventListener onGestureTap;
 
   IconButton({ String icon: '', this.onGestureTap })
     : super(key: icon), icon = icon;
 
+  String icon;
+  GestureEventListener onGestureTap;
+
   UINode build() {
     return new EventListenerNode(
       new Padding(
@@ -20,4 +21,5 @@ class IconButton extends Component {
         padding: const EdgeDims.all(8.0)),
       onGestureTap: onGestureTap);
   }
+
 }