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

sky/sdk/lib/framework/widgets/ink_well.dart

Index: sky/sdk/lib/framework/widgets/ink_well.dart
diff --git a/sky/sdk/lib/framework/components2/ink_well.dart b/sky/sdk/lib/framework/widgets/ink_well.dart
similarity index 98%
rename from sky/sdk/lib/framework/components2/ink_well.dart
rename to sky/sdk/lib/framework/widgets/ink_well.dart
index a67a63533c3ac60a644040496eb0bd2bd37950f2..48188f52a93897b1827a7a7cb3224e805dfb5489 100644
--- a/sky/sdk/lib/framework/components2/ink_well.dart
+++ b/sky/sdk/lib/framework/widgets/ink_well.dart
@@ -2,16 +2,16 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
+import 'dart:math' as math;
+import 'dart:sky' as sky;
+
 import '../animation/animated_value.dart';
 import '../animation/curves.dart';
-import '../fn2.dart';
 import '../rendering/box.dart';
 import '../rendering/flex.dart';
 import '../rendering/object.dart';
-import 'dart:async';
-import 'dart:collection';
-import 'dart:math' as math;
-import 'dart:sky' as sky;
+import 'ui_node.dart';
+import 'wrappers.dart';
 
 const int _kSplashInitialOpacity = 0x80;
 const double _kSplashInitialDelay = 0.0; // we could delay initially in case the user scrolls