Change core lib, dart2js, and more for new optional parameters syntax

tests/standalone/io/http_parser_test.dart

 // Copyright (c) 2012, 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('dart:math');
 #import('dart:scalarlist');
 
 #source("../../../runtime/bin/http_parser.dart");
 
 class HttpParserTest {
   static void runAllTests() {
     testParseRequest();
     testParseResponse();
     testParseInvalidRequest();
     testParseInvalidResponse();
   }
 
   static void _testParseRequest(String request,
                                 String expectedMethod,
                                 String expectedUri,
-                                [int expectedContentLength = -1,
-                                 int expectedBytesReceived = 0,
-                                 Map expectedHeaders = null,
-                                 bool chunked = false,
-                                 bool upgrade = false,
-                                 int unparsedLength = 0,
-                                 bool connectionClose = false,
-                                 String expectedVersion = "1.1"]) {
+                                {int expectedContentLength: -1,
+                                 int expectedBytesReceived: 0,
+                                 Map expectedHeaders: null,
+                                 bool chunked: false,
+                                 bool upgrade: false,
+                                 int unparsedLength: 0,
+                                 bool connectionClose: false,
+                                 String expectedVersion: "1.1"}) {
     _HttpParser httpParser;
     bool headersCompleteCalled;
     bool dataEndCalled;
     String method;
     String uri;
     String version;
     Map headers;
     int contentLength;
     int bytesReceived;
 
@@ skipping 106 matching lines @@
     // different chunks.
     List<int> requestData = request.charCodes();
     testWrite(requestData);
     testWrite(requestData, 10);
     testWrite(requestData, 1);
   }
 
   static void _testParseResponse(String response,
                                  int expectedStatusCode,
                                  String expectedReasonPhrase,
-                                 [int expectedContentLength = -1,
-                                  int expectedBytesReceived = 0,
-                                  Map expectedHeaders = null,
-                                  bool chunked = false,
-                                  bool close = false,
-                                  String responseToMethod = null,
-                                  bool connectionClose = false,
-                                  bool upgrade = false,
-                                  int unparsedLength = 0,
-                                  String expectedVersion = "1.1"]) {
+                                 {int expectedContentLength: -1,
+                                  int expectedBytesReceived: 0,
+                                  Map expectedHeaders: null,
+                                  bool chunked: false,
+                                  bool close: false,
+                                  String responseToMethod: null,
+                                  bool connectionClose: false,
+                                  bool upgrade: false,
+                                  int unparsedLength: 0,
+                                  String expectedVersion: "1.1"}) {
     _HttpParser httpParser;
     bool headersCompleteCalled;
     bool dataEndCalled;
     bool dataEndClose;
     int statusCode;
     String reasonPhrase;
     String version;
     Map headers;
     int contentLength;
     int bytesReceived;
@@ skipping 662 matching lines @@
 0123456789012345678901234567890\r
 0\r\n\r\n""";
     _testParseInvalidResponse(response);
   }
 }
 
 
 void main() {
   HttpParserTest.runAllTests();
 }