Attach the native entry struct to the ArchiveEntry object.

utils/archive/utils.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.
 
 #library("utils");
 
 #import("dart-ext:dart_archive");
 #import("dart:isolate");
 #import("archive.dart", prefix: "archive");
 
@@ skipping 12 matching lines @@
 /**
  * Send a message to the C extension.
  *
  * [requestType] is the specific request id to send. [id] is the id of the
  * archive; it may be null for requests that don't operate on a specific
  * archive. [args] are arguments that will be passed on to the extension. They
  * should all be C-safe.
  *
  * Returns a future that completes with the C extension's reply.
  */
-Future call(int requestType, int id, [List args]) {
+Future call(int requestType, [int id, List args]) {
   var fullArgs = [requestType, id];
   if (args != null) fullArgs.addAll(args);
   return servicePort.call(listForC(fullArgs)).transform((response) {
     var success = response[0];
     var errno = response[1];
     var message = response[2];
 
     if (!success) throw new ArchiveException(message, errno);
     return message;
   });
@@ skipping 56 matching lines @@
   /** The error code for the error, or null. */
   final int errno;
 
   ArchiveException(this.message, [this.errno]);
 
   String toString() {
     if (errno == null) return "Archive error: $message";
     return "Archive error $errno: $message";
   }
 }