Add publishTo to pubspec and use it in pub lish.

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

Index: sdk/lib/_internal/pub/test/lish/force_does_not_publish_if_private_test.dart
diff --git a/sdk/lib/_internal/pub/test/barback/fails_on_disallowed_directories_test.dart b/sdk/lib/_internal/pub/test/lish/force_does_not_publish_if_private_test.dart
similarity index 55%
copy from sdk/lib/_internal/pub/test/barback/fails_on_disallowed_directories_test.dart
copy to sdk/lib/_internal/pub/test/lish/force_does_not_publish_if_private_test.dart
index a57d8e7db545cd8621ee0abe6507224660349e25..b92ea72831242bf610a6c3b98bebd148684d47b5 100644
--- a/sdk/lib/_internal/pub/test/barback/fails_on_disallowed_directories_test.dart
+++ b/sdk/lib/_internal/pub/test/lish/force_does_not_publish_if_private_test.dart
@@ -2,24 +2,21 @@
 // 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:path/path.dart' as path;
 import 'package:scheduled_test/scheduled_test.dart';
 
 import '../../lib/src/exit_codes.dart' as exit_codes;
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
-import 'utils.dart';
 
 main() {
   initConfig();
+  integration('force does not publish if the package is private', () {
+    var pkg = packageMap("test_pkg", "1.0.0");
+    pkg["publishTo"] = "none";
+    d.dir(appPath, [d.pubspec(pkg)]).create();
 
-  setUp(() {
-    d.appDir().create();
+    schedulePub(args: ["lish", "--force"],
+        error: startsWith("A private package cannot be published."),
+        exitCode: exit_codes.DATA);
   });
-
-  var libSub = path.join("lib", "sub");
-  pubBuildAndServeShouldFail("if given directories are not allowed",
-      args: [libSub, "lib"],
-      error: 'Directories "$libSub" and "lib" are not allowed.',
-      exitCode: exit_codes.USAGE);
 }