Stop the search search button from crashing stocks2

sky/sdk/lib/framework/editing2/editable_text.dart

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 import 'dart:async';
 
 import '../widgets/wrappers.dart';
 import 'editable_string.dart';
 
 class EditableText extends Component {
@@ skipping 53 matching lines @@
     else if (!focused && _cursorTimer != null)
       _stopCursorTimer();
 
     //List<UINode> children = new List<UINode>();
     String hack = "";
 
     if (!value.composing.isValid) {
       // children.add(new TextFragment(value.text));
       hack += value.text;
     } else {
-      String beforeComposing = value.textBefore(value.composing);
-      if (!beforeComposing.isEmpty) {
-        // children.add(new TextFragment(beforeComposing));
-        hack += value.beforeComposing;
-      }
-
-      String composing = value.textInside(value.composing);
-      hack += value.composing;
-      hack += value.afterComposing;
+      hack += value.textBefore(value.composing);
+      hack += value.textInside(value.composing);
+      hack += value.textAfter(value.composing);
       // if (!composing.isEmpty) {
       //   children.add(new TextFragment(
       //     composing,
       //     key: 'composing',
       //     style: _composingStyle
       //   ));
       // }
 
       // String afterComposing = value.textAfter(value.composing);
       // if (!afterComposing.isEmpty)
       //   children.add(new TextFragment(afterComposing));
     }
 
     // if (_showCursor)
     //   children.add(new Container(
     //     key: 'cursor',
     //     // style: _cursorStyle
     //     ));
 
     return new Paragraph(
       text: hack
     );
   }
 }