Add publishTo to pubspec and use it in pub lish.

sdk/lib/_internal/pub/test/lish/preview_errors_if_private_test.dart

Index: sdk/lib/_internal/pub/test/lish/preview_errors_if_private_test.dart
diff --git a/sdk/lib/_internal/pub/test/lish/package_validation_has_a_warning_and_is_canceled_test.dart b/sdk/lib/_internal/pub/test/lish/preview_errors_if_private_test.dart
similarity index 52%
copy from sdk/lib/_internal/pub/test/lish/package_validation_has_a_warning_and_is_canceled_test.dart
copy to sdk/lib/_internal/pub/test/lish/preview_errors_if_private_test.dart
index 65ed4a652948b0371538fa790a8a1553aee4efbf..1ce191da5b3168e1df65722388fa30eefea394ea 100644
--- a/sdk/lib/_internal/pub/test/lish/package_validation_has_a_warning_and_is_canceled_test.dart
+++ b/sdk/lib/_internal/pub/test/lish/preview_errors_if_private_test.dart
@@ -1,10 +1,9 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
+// 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.
 
 import 'package:scheduled_test/scheduled_server.dart';
 import 'package:scheduled_test/scheduled_stream.dart';
-import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
@@ -12,18 +11,13 @@ import '../test_pub.dart';
 
 main() {
   initConfig();
-  setUp(d.validPackage.create);
-
-  integration('package validation has a warning and is canceled', () {
+  integration('preview shows an error if the package is private', () {
     var pkg = packageMap("test_pkg", "1.0.0");
-    pkg["author"] = "Nathan Weizenbaum";
+    pkg["publishTo"] = "none";
     d.dir(appPath, [d.pubspec(pkg)]).create();
 
-    var server = new ScheduledServer();
-    var pub = startPublish(server);
-
-    pub.writeLine("n");
-    pub.shouldExit(exit_codes.SUCCESS);
-    pub.stderr.expect(consumeThrough("Package upload canceled."));
+    schedulePub(args: ["lish", "--dry-run"],
+        error: "A private package cannot be published.",
+        exitCode: exit_codes.DATA);
   });
 }