Add library names to many sky libraries

sky/sdk/lib/framework/components/fixed_height_scrollable.dart

Index: sky/sdk/lib/framework/components/fixed_height_scrollable.dart
diff --git a/sky/sdk/lib/framework/components/fixed_height_scrollable.dart b/sky/sdk/lib/framework/components/fixed_height_scrollable.dart
index e54ebafa2a9c4561a215b87ace49c33da2f55e68..41c074221221a565588ccb66ab2cb6a560d33374 100644
--- a/sky/sdk/lib/framework/components/fixed_height_scrollable.dart
+++ b/sky/sdk/lib/framework/components/fixed_height_scrollable.dart
@@ -2,6 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+library components_fixed_height_scrollable;
+
 import '../animation/scroll_behavior.dart';
 import '../debug/tracing.dart';
 import '../fn.dart';
@@ -102,5 +104,5 @@ abstract class FixedHeightScrollable extends Scrollable {
     );
   }
 
-  List<UINode> buildItems(int start, int count);  
+  List<UINode> buildItems(int start, int count);
 }