Fix the parsing of generic function expressions

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 4251 matching lines @@
       _inInitializer = false;
       try {
         Expression expression = parseExpression2();
         Token rightParenthesis = _expect(TokenType.CLOSE_PAREN);
         return new ParenthesizedExpression(
             leftParenthesis, expression, rightParenthesis);
       } finally {
         _inInitializer = wasInInitializer;
       }
     } else if (type == TokenType.LT || _injectGenericCommentTypeList()) {
+      if (isFunctionExpression(currentToken)) {
+        return parseFunctionExpression();
+      }
       return parseListOrMapLiteral(null);
     } else if (type == TokenType.OPEN_CURLY_BRACKET) {
       return parseMapLiteral(null, null);
     } else if (type == TokenType.OPEN_SQUARE_BRACKET ||
         type == TokenType.INDEX) {
       return parseListLiteral(null, null);
     } else if (type == TokenType.QUESTION &&
         _tokenMatches(_peek(), TokenType.IDENTIFIER)) {
       _reportErrorForCurrentToken(
           ParserErrorCode.UNEXPECTED_TOKEN, [_currentToken.lexeme]);
@@ skipping 3835 matching lines @@
    */
   Parser_SyntheticKeywordToken(Keyword keyword, int offset)
       : super(keyword, offset);
 
   @override
   int get length => 0;
 
   @override
   Token copy() => new Parser_SyntheticKeywordToken(keyword, offset);
 }