Report UNMATCHED_TOKEN instead of EXTRANEOUS_MODIFIER

pkg/compiler/lib/src/parser/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 dart2js.parser;
 
 import '../options.dart' show ParserOptions;
 import '../common.dart';
 import '../tokens/keyword.dart' show Keyword;
 import '../tokens/precedence.dart' show PrecedenceInfo;
@@ skipping 10 matching lines @@
         OPEN_SQUARE_BRACKET_INFO,
         PERIOD_INFO,
         PLUS_PLUS_INFO,
         POSTFIX_PRECEDENCE,
         QUESTION_INFO,
         QUESTION_PERIOD_INFO,
         RELATIONAL_PRECEDENCE;
 import '../tokens/token.dart'
     show
         BeginGroupToken,
+        ErrorToken,
         isUserDefinableOperator,
         KeywordToken,
         SymbolToken,
         Token;
 import '../tokens/token_constants.dart'
     show
         BAD_INPUT_TOKEN,
         COMMA_TOKEN,
         DOUBLE_TOKEN,
         EOF_TOKEN,
@@ skipping 952 matching lines @@
       parseModifier(varFinalOrConst);
       modifierCount++;
       hasTypeOrModifier = true;
       modifierList.remove(varFinalOrConst);
     }
     listener.handleModifiers(modifierCount);
     var kind = hasTypeOrModifier
         ? MessageKind.EXTRANEOUS_MODIFIER
         : MessageKind.EXTRANEOUS_MODIFIER_REPLACE;
     for (Token modifier in modifierList) {
-      listener.reportError(modifier, kind, {'modifier': modifier});
+      if (modifier is ErrorToken) {

[ahe, 2016/05/03 11:11:38]

Modify Listenener.reportError instead.

[Johnni Winther, 2016/05/04 08:07:31]

Done.

+        listener.reportErrorToken(modifier);
+      } else {
+        listener.reportError(modifier, kind, {'modifier': modifier});
+      }
     }
     return null;
   }
 
   Token parseFields(Token start, Link<Token> modifiers, Token type,
       Token getOrSet, Token name, bool isTopLevel) {
     bool hasType = type != null;
     Token varFinalOrConst =
         expectVarFinalOrConst(modifiers, hasType, !isTopLevel);
     bool isVar = false;
@@ skipping 1968 matching lines @@
     }
     listener.handleContinueStatement(hasTarget, continueKeyword, token);
     return expectSemicolon(token);
   }
 
   Token parseEmptyStatement(Token token) {
     listener.handleEmptyStatement(token);
     return expectSemicolon(token);
   }
 }