Start pulling pub from its own repo.

sdk/lib/_internal/pub/test/run/errors_if_no_executable_is_given_test.dart

Index: sdk/lib/_internal/pub/test/run/errors_if_no_executable_is_given_test.dart
diff --git a/sdk/lib/_internal/pub/test/run/errors_if_no_executable_is_given_test.dart b/sdk/lib/_internal/pub/test/run/errors_if_no_executable_is_given_test.dart
deleted file mode 100644
index 388d497932ce291a094f25980e8902758b83e018..0000000000000000000000000000000000000000
--- a/sdk/lib/_internal/pub/test/run/errors_if_no_executable_is_given_test.dart
+++ /dev/null
@@ -1,29 +0,0 @@
-// 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 '../../lib/src/exit_codes.dart' as exit_codes;
-import '../descriptor.dart' as d;
-import '../test_pub.dart';
-
-main() {
-  initConfig();
-  integration('Errors if the executable does not exist.', () {
-    d.dir(appPath, [
-      d.appPubspec()
-    ]).create();
-
-    schedulePub(args: ["run"],
-        error: """
-Must specify an executable to run.
-
-Usage: pub run <executable> [args...]
--h, --help    Print this usage information.
-    --mode    Mode to run transformers in.
-              (defaults to "release" for dependencies, "debug" for entrypoint)
-
-Run "pub help" to see global options.
-""",
-        exitCode: exit_codes.USAGE);
-  });
-}