Mark status file and fix warnings found by dart2js in test.

tests/standalone/io/http_parser_test.dart

 // Copyright (c) 2013, 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.
 
 import "package:expect/expect.dart";
 import 'dart:async';
 import 'dart:math';
 import 'dart:typed_data';
 import 'dart:isolate';
 import 'dart:collection';
 
 part '../../../sdk/lib/io/common.dart';
 part '../../../sdk/lib/io/io_sink.dart';
 part '../../../sdk/lib/io/http.dart';
+part '../../../sdk/lib/io/http_date.dart';
 part '../../../sdk/lib/io/http_impl.dart';
 part '../../../sdk/lib/io/http_headers.dart';
 part '../../../sdk/lib/io/http_parser.dart';
 part '../../../sdk/lib/io/socket.dart';
 
 class HttpParserTest {
   static void runAllTests() {
     testParseRequest();
     testParseResponse();
     testParseInvalidRequest();
@@ skipping 13 matching lines @@
                                  String expectedVersion: "1.1"}) {
     StreamController controller;
     void reset() {
       _HttpParser httpParser = new _HttpParser.requestParser();
       controller = new StreamController(sync: true);
       var port1 = new ReceivePort();
       var port2 = new ReceivePort();
 
       String method;
       Uri uri;
-      HttpHeaders headers;
+      _HttpHeaders headers;
       int contentLength;
       int bytesReceived;
       int unparsedBytesReceived;
       bool upgraded;
 
       controller.stream.pipe(httpParser);
       var subscription = httpParser.listen((incoming) {
         method = incoming.method;
         uri = incoming.uri;
         headers = incoming.headers;
@@ skipping 130 matching lines @@
     StreamController controller;
     bool upgraded;
 
     void reset() {
       _HttpParser httpParser;
       bool headersCompleteCalled;
       bool dataEndCalled;
       bool dataEndClose;
       int statusCode;
       String reasonPhrase;
-      HttpHeaders headers;
+      _HttpHeaders headers;
       int contentLength;
       int bytesReceived;
       httpParser = new _HttpParser.responseParser();
       controller = new StreamController(sync: true);
       var port = new ReceivePort();
       controller.stream.pipe(httpParser);
       int doneCallCount = 0;
       // Called when done parsing entire message and done parsing body.
       // Only executed when both are done.
       void whenDone() {
@@ skipping 662 matching lines @@
 0123456789012345678901234567890\r
 0\r\n\r\n""";
     _testParseInvalidResponse(response);
   }
 }
 
 
 void main() {
   HttpParserTest.runAllTests();
 }