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

sdk/lib/_internal/pub_generated/test/global/list_test.dart

-// 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:path/path.dart' as p;
-
-import '../../lib/src/io.dart';
-import '../descriptor.dart' as d;
-import '../test_pub.dart';
-
-main() {
-  initConfig();
-
-  integration('lists an activated hosted package', () {
-    servePackages((builder) {
-      builder.serve('foo', '1.0.0');
-    });
-
-    schedulePub(args: ['global', 'activate', 'foo']);
-
-    schedulePub(args: ['global', 'list'], output: 'foo 1.0.0');
-  });
-
-  integration('lists an activated Git package', () {
-    ensureGit();
-
-    d.git(
-        'foo.git',
-        [
-            d.libPubspec('foo', '1.0.0'),
-            d.dir('bin', [d.file('foo.dart', 'main() => print("ok");')])]).create();
-
-    schedulePub(args: ['global', 'activate', '-sgit', '../foo.git']);
-
-    schedulePub(
-        args: ['global', 'list'],
-        output: 'foo 1.0.0 from Git repository "../foo.git"');
-  });
-
-  integration('lists an activated Path package', () {
-    d.dir(
-        'foo',
-        [
-            d.libPubspec('foo', '1.0.0'),
-            d.dir('bin', [d.file('foo.dart', 'main() => print("ok");')])]).create();
-
-    schedulePub(args: ['global', 'activate', '-spath', '../foo']);
-
-    var path = canonicalize(p.join(sandboxDir, 'foo'));
-    schedulePub(args: ['global', 'list'], output: 'foo 1.0.0 at path "$path"');
-  });
-
-  integration('lists activated packages in alphabetical order', () {
-    servePackages((builder) {
-      builder.serve('aaa', '1.0.0');
-      builder.serve('bbb', '1.0.0');
-      builder.serve('ccc', '1.0.0');
-    });
-
-    schedulePub(args: ['global', 'activate', 'ccc']);
-    schedulePub(args: ['global', 'activate', 'aaa']);
-    schedulePub(args: ['global', 'activate', 'bbb']);
-
-    schedulePub(args: ['global', 'list'], output: '''
-aaa 1.0.0
-bbb 1.0.0
-ccc 1.0.0
-''');
-  });
-
-  integration('lists nothing when no packages activated', () {
-    schedulePub(args: ['global', 'list'], output: '\n');
-  });
-}