Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/transformer/ignores_a_transformer_on_test_files_in_a_dependency_test.dart

-// Copyright (c) 2015, the Dart project authors.  Please see the AUTHORS d.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 '../descriptor.dart' as d;
-import '../test_pub.dart';
-import '../serve/utils.dart';
-
-main() {
-  initConfig();
-  // Regression test for issue 23480
-  integration("ignores a transformer on test files in a dependency", () {
-    servePackages((builder) {
-      builder.serveRepoPackage('barback');
-
-      builder.serve("bar", "1.2.3", contents: [
-        d.dir("lib", [
-          // Make this invalid so that if it does get loaded, pub will
-          // definitely throw an error.
-          d.file("bar.dart", "{invalid Dart code)")
-        ])
-      ]);
-
-      builder.serve("foo", "1.2.3",
-        pubspec: {
-        "name": "foo",
-        "version": "1.0.0",
-        "dev_dependencies": {
-          "bar": "any"
-        },
-        "transformers": [{
-          "bar": {"\$include": "test/**"}
-        }]
-      }, contents: [
-        d.dir("test", [
-          d.file("my_test.dart", "void main() {}")
-        ])
-      ]);
-    });
-
-    d.dir(appPath, [
-      d.pubspec({
-        "name": "myapp",
-        "dependencies": {"foo": "any"}
-      }),
-      d.dir("web", [
-        d.file("foo.txt", "foo")
-      ])
-    ]).create();
-
-    pubGet();
-
-    pubServe();
-    requestShouldSucceed("foo.txt", "foo");
-    endPubServe();
-  });
-}