Delete a bunch of packages that are now on GitHub.

pkg/watcher/test/directory_watcher/mac_os_test.dart

-// Copyright (c) 2013, 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_test.dart';
-import 'package:watcher/src/directory_watcher/mac_os.dart';
-import 'package:watcher/watcher.dart';
-
-import 'shared.dart';
-import '../utils.dart';
-
-void main() {
-  initConfig();
-  MacOSDirectoryWatcher.logDebugInfo = true;
-
-  watcherFactory = (dir) => new MacOSDirectoryWatcher(dir);
-
-  setUp(createSandbox);
-
-  sharedTests();
-
-  test('DirectoryWatcher creates a MacOSDirectoryWatcher on Mac OS', () {
-    expect(new DirectoryWatcher('.'),
-        new isInstanceOf<MacOSDirectoryWatcher>());
-  });
-
-  test('does not notify about the watched directory being deleted and '
-      'recreated immediately before watching', () {
-    createDir("dir");
-    writeFile("dir/old.txt");
-    deleteDir("dir");
-    createDir("dir");
-
-    startWatcher(dir: "dir");
-    writeFile("dir/newer.txt");
-    expectAddEvent("dir/newer.txt");
-  });
-
-  test('emits events for many nested files moved out then immediately back in',
-      () {
-    withPermutations((i, j, k) =>
-        writeFile("dir/sub/sub-$i/sub-$j/file-$k.txt"));
-
-    startWatcher(dir: "dir");
-
-    renameDir("dir/sub", "sub");
-    renameDir("sub", "dir/sub");
-
-    allowEither(() {
-      inAnyOrder(withPermutations((i, j, k) =>
-          isRemoveEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
-
-      inAnyOrder(withPermutations((i, j, k) =>
-          isAddEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
-    }, () {
-      inAnyOrder(withPermutations((i, j, k) =>
-          isModifyEvent("dir/sub/sub-$i/sub-$j/file-$k.txt")));
-    });
-  });
-}