Remove cancel and make crash exit with code 253.

sdk/lib/_internal/compiler/implementation/scanner/class_element_parser.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.
 
 part of scanner;
 
 class ClassElementParser extends PartialParser {
   ClassElementParser(Listener listener) : super(listener);
 
   Token parseClassBody(Token token) => fullParseClassBody(token);
@@ skipping 106 matching lines @@
 
   void endMethod(Token getOrSet, Token beginToken, Token endToken) {
     super.endMethod(getOrSet, beginToken, endToken);
     FunctionExpression method = popNode();
     pushNode(null);
     bool isConstructor = isConstructorName(method.name);
     String name = getMethodNameHack(method.name);
     ElementKind kind = ElementKind.FUNCTION;
     if (isConstructor) {
       if (getOrSet != null) {
-        recoverableError('illegal modifier', token: getOrSet);
+        recoverableError(getOrSet, 'illegal modifier');
       }
       kind = ElementKind.GENERATIVE_CONSTRUCTOR;
     } else if (getOrSet != null) {
       kind = (identical(getOrSet.stringValue, 'get'))
              ? ElementKind.GETTER : ElementKind.SETTER;
     }
     bool hasNoBody = !isConstructor && !method.hasBody();
     Element memberElement =
         new PartialFunctionElement(name, beginToken, getOrSet, endToken,
                                    kind, method.modifiers, enclosingElement,
@@ skipping 56 matching lines @@
 
   void endMetadata(Token beginToken, Token periodBeforeName, Token endToken) {
     popNode(); // Discard arguments.
     if (periodBeforeName != null) {
       popNode(); // Discard name.
     }
     popNode(); // Discard node (Send or Identifier).
     pushMetadata(new PartialMetadataAnnotation(beginToken, endToken));
   }
 }