Make RegExp's constructor non-const.

samples/swarm/swarm_ui_lib/base/Device.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // TODO(jacobr): cache these results.
 // TODO(jacobr): figure out how to test this.
 /**
  * Utils for device detection.
  */
 class Device {
 
   /**
    * The regular expression for detecting an iPhone or iPod.
    */
-  static const _IPHONE_REGEX = const RegExp('iPhone|iPod');
+  static final _IPHONE_REGEX = new RegExp('iPhone|iPod');
 
   /**
    * The regular expression for detecting an iPhone or iPod or iPad.
    */
-  static const _MOBILE_SAFARI_REGEX = const RegExp('iPhone|iPod|iPad');
+  static final _MOBILE_SAFARI_REGEX = new RegExp('iPhone|iPod|iPad');
 
   /**
    * The regular expression for detecting an iPhone or iPod or iPad simulator.
    */
-  static const _APPLE_SIM_REGEX = const RegExp('iP.*Simulator');
+  static final _APPLE_SIM_REGEX = new RegExp('iP.*Simulator');
 
   /**
    * Gets the browser's user agent. Using this function allows tests to inject
    * the user agent.
    * Returns the user agent.
    */
   static String get userAgent => window.navigator.userAgent;
 
   /**
    * Determines if the current device is an iPhone or iPod.
@@ skipping 37 matching lines @@
   static bool get isWebOs => userAgent.contains("webOS", 0);
 
   static bool _supportsTouch;
   static bool get supportsTouch {
     if (_supportsTouch == null) {
       _supportsTouch = isMobileSafari || isAndroid;
     }
     return _supportsTouch;
   }
 }