Remove cancel and make crash exit with code 253.

sdk/lib/_internal/compiler/implementation/scanner/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.
 
 part of scanner;
 
 class FormalParameterType {
   final String type;
   const FormalParameterType(this.type);
   bool get isRequired => this == REQUIRED;
@@ skipping 925 matching lines @@
     } while (optional(',', token));
     mayParseFunctionExpressions = old;
     listener.endInitializers(count, begin, token);
     return token;
   }
 
   Token parseLiteralStringOrRecoverExpression(Token token) {
     if (identical(token.kind, STRING_TOKEN)) {
       return parseLiteralString(token);
     } else {
-      listener.recoverableError("unexpected", token: token);
+      listener.recoverableError(token, "unexpected");
       return parseExpression(token);
     }
   }
 
   Token expectSemicolon(Token token) {
     return expect(';', token);
   }
 
   bool isModifier(Token token) {
     final String value = token.stringValue;
@@ skipping 1476 matching lines @@
     }
     listener.handleContinueStatement(hasTarget, continueKeyword, token);
     return expectSemicolon(token);
   }
 
   Token parseEmptyStatement(Token token) {
     listener.handleEmptyStatement(token);
     return expectSemicolon(token);
   }
 }