Revert "Revert "Use native async/await support in pub.""

sdk/lib/_internal/pub_generated/test/ascii_tree_test.dart

Index: sdk/lib/_internal/pub_generated/test/ascii_tree_test.dart
diff --git a/sdk/lib/_internal/pub_generated/test/ascii_tree_test.dart b/sdk/lib/_internal/pub_generated/test/ascii_tree_test.dart
deleted file mode 100644
index 04cf1f7fa44843b49419c596a33c463c554a22b1..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub_generated/test/ascii_tree_test.dart
+++ /dev/null
@@ -1,244 +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/ascii_tree.dart' as tree;
-import '../lib/src/utils.dart';
-
-main() {
-  runningAsTest = true;
-
-  group('tree.fromFiles', () {
-    test('no files', () {
-      expect(tree.fromFiles([]), 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(tree.fromFiles(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(tree.fromFiles(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(tree.fromFiles(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(tree.fromFiles(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
-"""));
-    });
-  });
-
-  group('treeFromMap', () {
-    test('empty map', () {
-      expect(tree.fromMap({}), equals(""));
-    });
-
-    test('a complex example', () {
-      var map = {
-        ".gitignore": {},
-        "README.md": {},
-        "TODO": {},
-        "example": {
-          "console_example.dart": {},
-          "main.dart": {},
-          "web copy": {
-            "web_example.dart": {}
-          },
-        },
-        "lib": {
-          "path.dart": {}
-        },
-        "pubspec.yaml": {},
-        "test": {
-          "absolute_test.dart": {},
-          "basename_test.dart": {},
-          "dirname_test.dart": {},
-          "extension_test.dart": {},
-          "is_absolute_test.dart": {},
-          "is_relative_test.dart": {},
-          "join_test.dart": {},
-          "normalize_test.dart": {},
-          "relative_test.dart": {},
-          "split_test.dart": {}
-        }
-      };
-
-      expect(tree.fromMap(map), 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
-    |-- basename_test.dart
-    |-- dirname_test.dart
-    |-- extension_test.dart
-    |-- is_absolute_test.dart
-    |-- is_relative_test.dart
-    |-- join_test.dart
-    |-- normalize_test.dart
-    |-- relative_test.dart
-    '-- split_test.dart
-"""));
-    });
-  });
-
-  test('does not elide children if showAllChildren is true', () {
-    var map = {
-      'dir': {
-        'a.dart': {},
-        'b.dart': {},
-        'c.dart': {},
-        'd.dart': {},
-        'e.dart': {},
-        'f.dart': {},
-        'g.dart': {},
-        'h.dart': {},
-        'i.dart': {},
-        'j.dart': {},
-        'k.dart': {},
-        'l.dart': {},
-      }
-    };
-    expect(tree.fromMap(map, showAllChildren: true), equals("""
-'-- dir
-    |-- a.dart
-    |-- b.dart
-    |-- c.dart
-    |-- d.dart
-    |-- e.dart
-    |-- f.dart
-    |-- g.dart
-    |-- h.dart
-    |-- i.dart
-    |-- j.dart
-    |-- k.dart
-    '-- l.dart
-"""));
-  });
-
-}