Remove cancel and make crash exit with code 253.

tests/compiler/dart2js/parser_helper.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_helper;
 
 import "package:expect/expect.dart";
 
 import "../../../sdk/lib/_internal/compiler/implementation/elements/elements.dart";
 import "../../../sdk/lib/_internal/compiler/implementation/tree/tree.dart";
@@ skipping 14 matching lines @@
 
 class LoggerCanceler implements DiagnosticListener {
   void cancel(String reason, {node, token, instruction, element}) {
     throw new CompilerCancelledException(reason);
   }
 
   void log(message) {
     print(message);
   }
 
-  void internalErrorOnElement(element, String message) {
+  void internalError(node, String message) {
     log(message);
   }
 
-  void internalError(String message, {node, token, instruction, element}) {
-    log(message);
-  }
-
   SourceSpan spanFromSpannable(node) {
     throw 'unsupported operation';
   }
 
   void reportMessage(SourceSpan span, Message message, kind) {
     log(message);
   }
 
+  void reportFatalError(Spannable node,

[karlklose, 2014/03/21 08:39:39]

Could you add a comment describing what a fatal error is.

[Johnni Winther, 2014/03/21 09:39:23]

Done.

+                        MessageKind errorCode,
+                        [Map arguments]) {
+    log(new Message(errorCode, arguments, false));
+  }
+
   void reportError(Spannable node, MessageKind errorCode, [Map arguments]) {
     log(new Message(errorCode, arguments, false));
   }
 
   void reportWarning(Spannable node, MessageKind errorCode, [Map arguments]) {
     log(new Message(errorCode, arguments, false));
   }
 
   void reportInfo(Spannable node, MessageKind errorCode, [Map arguments]) {
     log(new Message(errorCode, arguments, false));
   }
 
+  void reportHint(Spannable node, MessageKind errorCode, [Map arguments]) {
+    log(new Message(errorCode, arguments, false));
+  }
+
   withCurrentElement(Element element, f()) => f();
 }
 
 Token scan(String text) => new StringScanner.fromString(text).tokenize();
 
 Node parseBodyCode(String text, Function parseMethod,
                    {DiagnosticListener diagnosticHandler}) {
   Token tokens = scan(text);
   if (diagnosticHandler == null) diagnosticHandler = new LoggerCanceler();
   Uri uri = new Uri(scheme: "source");
@@ skipping 47 matching lines @@
   ElementListener listener = new ElementListener(compiler, unit, () => id++);
   PartialParser parser = new PartialParser(listener);
   compiler.withCurrentElement(unit, () => parser.parseUnit(tokens));
   return unit.localMembers;
 }
 
 NodeList fullParseUnit(String source, {DiagnosticListener diagnosticHandler}) {
   return parseBodyCode(source, (parser, tokens) => parser.parseUnit(tokens),
                        diagnosticHandler: diagnosticHandler);
 }