Add a "pub dependencies" command.

sdk/lib/_internal/pub/test/directory_tree_test.dart

Index: sdk/lib/_internal/pub/test/directory_tree_test.dart
diff --git a/sdk/lib/_internal/pub/test/directory_tree_test.dart b/sdk/lib/_internal/pub/test/directory_tree_test.dart
deleted file mode 100644
index 0009f8e9301d05cc11d98e0fe8a40316731909bf..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/directory_tree_test.dart
+++ /dev/null
@@ -1,146 +0,0 @@
-// 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 lock_file_test;
-
-import 'package:unittest/unittest.dart';
-
-import '../lib/src/directory_tree.dart';
-
-main() {
-  test('no files', () {
-    expect(generateTree([]), equals(""));
-  });
-
-  test('up to ten files in one directory are shown', () {
-    var files = [
-      "dir/a.dart",
-      "dir/b.dart",
-      "dir/c.dart",
-      "dir/d.dart",
-      "dir/e.dart",
-      "dir/f.dart",
-      "dir/g.dart",
-      "dir/h.dart",
-      "dir/i.dart",
-      "dir/j.dart"
-    ];
-    expect(generateTree(files), equals("""
-'-- dir
-    |-- a.dart
-    |-- b.dart
-    |-- c.dart
-    |-- d.dart
-    |-- e.dart
-    |-- f.dart
-    |-- g.dart
-    |-- h.dart
-    |-- i.dart
-    '-- j.dart
-"""));
-  });
-
-  test('files are elided if there are more than ten', () {
-    var files = [
-      "dir/a.dart",
-      "dir/b.dart",
-      "dir/c.dart",
-      "dir/d.dart",
-      "dir/e.dart",
-      "dir/f.dart",
-      "dir/g.dart",
-      "dir/h.dart",
-      "dir/i.dart",
-      "dir/j.dart",
-      "dir/k.dart"
-    ];
-    expect(generateTree(files), equals("""
-'-- dir
-    |-- a.dart
-    |-- b.dart
-    |-- c.dart
-    | (5 more...)
-    |-- i.dart
-    |-- j.dart
-    '-- k.dart
-"""));
-  });
-
-  test('files are not elided at the top level', () {
-    var files = [
-      "a.dart",
-      "b.dart",
-      "c.dart",
-      "d.dart",
-      "e.dart",
-      "f.dart",
-      "g.dart",
-      "h.dart",
-      "i.dart",
-      "j.dart",
-      "k.dart"
-    ];
-    expect(generateTree(files), equals("""
-|-- a.dart
-|-- b.dart
-|-- c.dart
-|-- d.dart
-|-- e.dart
-|-- f.dart
-|-- g.dart
-|-- h.dart
-|-- i.dart
-|-- j.dart
-'-- k.dart
-"""));
-  });
-
-  test('a complex example', () {
-    var files = [
-      "TODO",
-      "example/console_example.dart",
-      "example/main.dart",
-      "example/web copy/web_example.dart",
-      "test/absolute_test.dart",
-      "test/basename_test.dart",
-      "test/dirname_test.dart",
-      "test/extension_test.dart",
-      "test/is_absolute_test.dart",
-      "test/is_relative_test.dart",
-      "test/join_test.dart",
-      "test/normalize_test.dart",
-      "test/relative_test.dart",
-      "test/split_test.dart",
-      ".gitignore",
-      "README.md",
-      "lib/path.dart",
-      "pubspec.yaml",
-      "test/all_test.dart",
-      "test/path_posix_test.dart",
-      "test/path_windows_test.dart"
-    ];
-
-    expect(generateTree(files), equals("""
-|-- .gitignore
-|-- README.md
-|-- TODO
-|-- example
-|   |-- console_example.dart
-|   |-- main.dart
-|   '-- web copy
-|       '-- web_example.dart
-|-- lib
-|   '-- path.dart
-|-- pubspec.yaml
-'-- test
-    |-- absolute_test.dart
-    |-- all_test.dart
-    |-- basename_test.dart
-    | (7 more...)
-    |-- path_windows_test.dart
-    |-- relative_test.dart
-    '-- split_test.dart
-"""));
-  });
-}