Make the popup menu work again.

sky/sdk/lib/widgets/basic.dart

Index: sky/sdk/lib/widgets/basic.dart
diff --git a/sky/sdk/lib/widgets/basic.dart b/sky/sdk/lib/widgets/basic.dart
index 453098b46eb8da021e4067c4ed1380bdf87e9a71..ed24024783be5c5908bd6290fcd5fe1e9bcb6475 100644
--- a/sky/sdk/lib/widgets/basic.dart
+++ b/sky/sdk/lib/widgets/basic.dart
@@ -346,7 +346,7 @@ class Flexible extends ParentDataNode {
 }
 
 class Inline extends RenderObjectWrapper {
-  Inline({ Object key, this.text }) : super(key: key);
+  Inline({ String key, this.text }) : super(key: key);
 
   RenderParagraph get root => super.root;
   RenderParagraph createNode() => new RenderParagraph(text);
@@ -366,7 +366,7 @@ class Inline extends RenderObjectWrapper {
 }
 
 class Text extends Component {
-  Text(this.data, { TextStyle this.style }) : super(key: '*text*');
+  Text(data, { String key, TextStyle this.style }) : data = data, super(key: key);
   final String data;
   final TextStyle style;
   bool get interchangeable => true;