Refactor fn2.dart, since it breached our 1000-line threshold.

sky/examples/stocks2/lib/stock_app.dart

Index: sky/examples/stocks2/lib/stock_app.dart
diff --git a/sky/examples/stocks2/lib/stock_app.dart b/sky/examples/stocks2/lib/stock_app.dart
index fcd95d663f851264dd5c77e44a8f249f7c6d3963..4e29072c8720f8b072f3bb4c130a0baaaf4aa4c4 100644
--- a/sky/examples/stocks2/lib/stock_app.dart
+++ b/sky/examples/stocks2/lib/stock_app.dart
@@ -2,30 +2,26 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-import 'package:sky/framework/components2/tool_bar.dart';
-import 'package:sky/framework/components2/drawer.dart';
-import 'package:sky/framework/components2/drawer_header.dart';
-import 'package:sky/framework/components2/floating_action_button.dart';
-import 'package:sky/framework/components2/icon.dart';
-import 'package:sky/framework/components2/icon_button.dart';
-import 'package:sky/framework/components2/menu_divider.dart';
-import 'package:sky/framework/components2/menu_item.dart';
-import 'package:sky/framework/components2/input.dart';
-import 'package:sky/framework/components2/modal_overlay.dart';
-import 'package:sky/framework/components2/popup_menu.dart';
-import 'package:sky/framework/components2/radio.dart';
-import 'package:sky/framework/components2/scaffold.dart';
-import 'package:sky/framework/fn2.dart';
-import 'package:sky/framework/theme2/typography.dart' as typography;
+import 'package:sky/framework/editing2/input.dart';
 import 'package:sky/framework/theme2/colors.dart' as colors;
+import 'package:sky/framework/widgets/drawer.dart';
+import 'package:sky/framework/widgets/drawer_header.dart';
+import 'package:sky/framework/widgets/floating_action_button.dart';
+import 'package:sky/framework/widgets/icon.dart';
+import 'package:sky/framework/widgets/icon_button.dart';
+import 'package:sky/framework/widgets/menu_divider.dart';
+import 'package:sky/framework/widgets/menu_item.dart';
+import 'package:sky/framework/widgets/modal_overlay.dart';
+import 'package:sky/framework/widgets/popup_menu.dart';
+import 'package:sky/framework/widgets/radio.dart';
+import 'package:sky/framework/widgets/scaffold.dart';
+import 'package:sky/framework/widgets/tool_bar.dart';
+import 'package:sky/framework/widgets/wrappers.dart';
+
 import 'stock_data.dart';
-import 'package:sky/framework/rendering/box.dart';
 import 'stock_list.dart';
 import 'stock_menu.dart';
 
-import 'dart:async';
-import 'dart:sky' as sky;
-
 enum StockMode { optimistic, pessimistic }
 
 class StocksApp extends App {