Fix for labels and the 'inDeclarationContext' flag.

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 3431 matching lines @@
 
   /**
    * Parse a statement. Return the statement that was parsed.
    *
    *     statement ::=
    *         label* nonLabeledStatement
    */
   Statement parseStatement2() {
     List<Label> labels = new List<Label>();
     while (_matchesIdentifier() && _tokenMatches(_peek(), TokenType.COLON)) {
-      labels.add(parseLabel());
+      labels.add(parseLabel(isDeclaration: true));
     }
     Statement statement = _parseNonLabeledStatement();
     if (labels.isEmpty) {
       return statement;
     }
     return new LabeledStatement(labels, statement);
   }
 
   /**
    * Parse a sequence of statements, starting with the given [token]. Return the
@@ skipping 4273 matching lines @@
       Expression expression = parseExpression2();
       Token rightParenthesis = _expect(TokenType.CLOSE_PAREN);
       Token leftBracket = _expect(TokenType.OPEN_CURLY_BRACKET);
       Token defaultKeyword = null;
       List<SwitchMember> members = new List<SwitchMember>();
       while (!_matches(TokenType.EOF) &&
           !_matches(TokenType.CLOSE_CURLY_BRACKET)) {
         List<Label> labels = new List<Label>();
         while (
             _matchesIdentifier() && _tokenMatches(_peek(), TokenType.COLON)) {
-          SimpleIdentifier identifier = parseSimpleIdentifier();
+          SimpleIdentifier identifier =
+              parseSimpleIdentifier(isDeclaration: true);
           String label = identifier.token.lexeme;
           if (definedLabels.contains(label)) {
             _reportErrorForToken(
                 ParserErrorCode.DUPLICATE_LABEL_IN_SWITCH_STATEMENT,
                 identifier.token,
                 [label]);
           } else {
             definedLabels.add(label);
           }
           Token colon = _expect(TokenType.COLON);
@@ skipping 2199 matching lines @@
    */
   const ParserErrorCode(String name, String message, [String correction])
       : super(name, message, correction);
 
   @override
   ErrorSeverity get errorSeverity => ErrorSeverity.ERROR;
 
   @override
   ErrorType get type => ErrorType.SYNTACTIC_ERROR;
 }