Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/barback/subdirectories_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 'package:scheduled_test/scheduled_test.dart';
-
-import '../descriptor.dart' as d;
-import '../serve/utils.dart';
-import '../test_pub.dart';
-
-main() {
-  initConfig();
-
-  setUp(() {
-    d.dir(appPath, [
-      d.appPubspec(),
-      d.dir("web", [
-        d.dir("one", [
-          d.dir("inner", [d.file("file.txt", "one")])
-        ]),
-        d.dir("two", [
-          d.dir("inner", [d.file("file.txt", "two")])
-        ]),
-        d.dir("nope", [
-          d.dir("inner", [d.file("file.txt", "nope")])
-        ])
-      ])
-    ]).create();
-  });
-
-  var webOne = p.join("web", "one");
-  var webTwoInner = p.join("web", "two", "inner");
-
-  integration("builds subdirectories", () {
-    schedulePub(args: ["build", webOne, webTwoInner],
-        output: new RegExp(r'Built 2 files to "build".'));
-
-    d.dir(appPath, [
-      d.dir("build", [
-        d.dir("web", [
-          d.dir("one", [
-            d.dir("inner", [d.file("file.txt", "one")])
-          ]),
-          d.dir("two", [
-            d.dir("inner", [d.file("file.txt", "two")])
-          ]),
-          d.nothing("nope")
-        ])
-      ])
-    ]).validate();
-  });
-
-  integration("serves subdirectories", () {
-    pubServe(args: [webOne, webTwoInner]);
-
-    requestShouldSucceed("inner/file.txt", "one", root: webOne);
-    requestShouldSucceed("file.txt", "two", root: webTwoInner);
-    expectNotServed("web");
-    expectNotServed(p.join("web", "three"));
-
-    endPubServe();
-  });
-}