Improve incomplete for-each parsing.

pkg/analyzer/test/generated/parser_test.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 engine.parser_test;
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
@@ skipping 3531 matching lines @@
         (obj) => obj is FieldDeclaration, FieldDeclaration, classMember);
     VariableDeclarationList fieldList =
         (classMember as FieldDeclaration).fields;
     expect((fieldList.keyword as KeywordToken).keyword, Keyword.VAR);
     NodeList<VariableDeclaration> fields = fieldList.variables;
     expect(fields, hasLength(1));
     VariableDeclaration field = fields[0];
     expect(field.name.isSynthetic, isTrue);
   }
 
+  void test_incompleteForEach() {
+    ForStatement statement = ParserTestCase.parseStatement(
+        'for (String item i) {}',
+        [ParserErrorCode.EXPECTED_TOKEN, ParserErrorCode.EXPECTED_TOKEN]);
+    expect(statement, new isInstanceOf<ForStatement>());
+    expect(statement.toSource(), 'for (String item; i;) {}');
+    expect(statement.leftSeparator, isNotNull);
+    expect(statement.leftSeparator.type, TokenType.SEMICOLON);
+    expect(statement.rightSeparator, isNotNull);
+    expect(statement.rightSeparator.type, TokenType.SEMICOLON);
+  }
+
   void test_incompleteLocalVariable_atTheEndOfBlock() {
     Statement statement = ParserTestCase.parseStatement(
         'String v }', [ParserErrorCode.EXPECTED_TOKEN]);
     expect(statement, new isInstanceOf<VariableDeclarationStatement>());
     expect(statement.toSource(), 'String v;');
   }
 
   void test_incompleteLocalVariable_beforeIdentifier() {
     Statement statement = ParserTestCase.parseStatement(
         'String v String v2;', [ParserErrorCode.EXPECTED_TOKEN]);
@@ skipping 7158 matching lines @@
         new Scanner(null, new CharSequenceReader(source), listener);
     Token tokenStream = scanner.tokenize();
     //
     // Parse the source.
     //
     Parser parser = new Parser(null, listener);
     return invokeParserMethodImpl(
         parser, methodName, <Object>[tokenStream], tokenStream) as Token;
   }
 }