- Adjust test to renamed optional parameter.

tests/isolate/package_map_test.dart

 // Copyright (c) 2015, 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:io';
 import 'dart:isolate';
 
 final NOT_HERE = "notHere";
 final NOT_HERE_URI = "file:///no/such/file/";
 
@@ skipping 18 matching lines @@
     if (msg[0] != NOT_HERE) {
       throw "Key should be $NOT_HERE: ${msg[0]}";
     }
     if (msg[1] != NOT_HERE_URI) {
       throw "Value should be $NOT_HERE_URI: ${msg[1]}";
     }
   };
   Isolate.spawnUri(Platform.script,
                    [],
                    p.sendPort,
-                   packages: {
+                   packageMap: {
                      NOT_HERE: Uri.parse(NOT_HERE_URI)
                    });
 }
 
 testPackageRoot(port) async {
   var packageMap = await Isolate.packageMap;
   var packageMapEntries = [];
   if (packageMap is! Map) {
     port.send("packageMap is not a Map: ${packageMap.runtimeType}");
     return;
   }
   var ok = true;
   packageMap.forEach((k, v) {
     if (ok && (k is! String)) {
       port.send("Key $k is not a String: ${k.runtimeType}");
       ok = false;
     }
     packageMapEntries.add(k);
     if (ok && (v is! Uri)) {
       port.send("Value $v is not a Uri: ${v.runtimeType}");
       ok = false;
     }
     packageMapEntries.add(v.toString());
   });
   if (ok) {
     port.send(packageMapEntries);
   }
 }