Change core lib, dart2js, and more for new optional parameters syntax

lib/compiler/implementation/tools/mini_parser.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.
 
 #library('parser');
 
 #import('dart:io');
 #import('dart:scalarlist');
 
 #import('../../../utf/utf.dart');
@@ skipping 246 matching lines @@
 }
 
 class MyCanceller implements DiagnosticListener {
   final SourceFile file;
   final MyOptions options;
 
   MyCanceller(this.file, this.options);
 
   void log(String message) {}
 
-  void cancel([String reason, node, token, instruction, element]) {
+  void cancel(String reason, {node, token, instruction, element}) {
     Token beginToken;
     Token endToken;
     if (token !== null) {
       beginToken = token;
       endToken = token;
     } else if (node !== null) {
       beginToken = node.getBeginToken();
       endToken = node.getEndToken();
     }
     String message = formatError(reason, beginToken, endToken, file);
@@ skipping 34 matching lines @@
   set text(String newText) {
     throw "not supported";
   }
 }
 
 class Mock {
   const Mock();
   bool get useColors => true;
   internalError(message) { throw message.toString(); }
 }