Issue 25522. Insert a synthetic '>' for incomplete type arguments.

pkg/analyzer/lib/src/generated/parser.dart

 // Copyright (c) 2014, 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 analyzer.src.generated.parser;
 
 import 'dart:collection';
 import "dart:math" as math;
 
 import 'package:analyzer/dart/ast/ast.dart';
@@ skipping 3783 matching lines @@
           _currentToken.previous, [type.lexeme]);
     } else {
       _reportErrorForCurrentToken(
           ParserErrorCode.EXPECTED_TOKEN, [type.lexeme]);
     }
     return _currentToken;
   }
 
   /**
    * If the current token has the type [TokenType.GT], return it after advancing
    * to the next token. Otherwise report an error and return the current token

[Brian Wilkerson, 2016/01/21 19:25:12]

The comment needs to be updated.

[scheglov, 2016/01/21 21:03:46]

Done.

    * without advancing.
    */
   Token _expectGt() {
     if (_matchesGt()) {
       return getAndAdvance();
     }
     _reportErrorForCurrentToken(
         ParserErrorCode.EXPECTED_TOKEN, [TokenType.GT.lexeme]);
-    return _currentToken;
+    return _createSyntheticToken(TokenType.GT);
   }
 
   /**
    * If the current token is a keyword matching the given [keyword], return it
    * after advancing to the next token. Otherwise report an error and return the
    * current token without advancing.
    */
   Token _expectKeyword(Keyword keyword) {
     if (_matchesKeyword(keyword)) {
       return getAndAdvance();
@@ skipping 7536 matching lines @@
   }
 
   /**
    * Copy resolution data from the [fromNode] to the [toNode].
    */
   static void copyResolutionData(AstNode fromNode, AstNode toNode) {
     ResolutionCopier copier = new ResolutionCopier();
     copier._isEqualNodes(fromNode, toNode);
   }
 }