- Change "static final" to "static const" in the runtime/ directory.

runtime/bin/common.dart

 // Copyright (c) 2012, 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.
 
 /**
   * An [OSError] object holds information about an error from the
   * operating system.
   */
 class OSError {
-  static final int noErrorCode = -1;
+  static const int noErrorCode = -1;
 
   const OSError([String this.message = "", int this.errorCode = noErrorCode]);
 
   String toString() {
     StringBuffer sb = new StringBuffer();
     sb.add("OS Error");
     if (!message.isEmpty()) {
       sb.add(": ");
       sb.add(message);
       if (errorCode != noErrorCode) {
@@ skipping 12 matching lines @@
     * associated with the error.
     */
   final String message;
 
   /**
     * Error code supplied by the operating system. Will have the value
     * [noErrorCode] if there is no error code associated with the error.
     */
   final int errorCode;
 }