dart_pkg cleanups

services/dart/dart_apptests/BUILD.gn

 # Copyright 2015 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//mojo/public/dart/rules.gni")
 
 dart_pkg("dart_apptests") {
-  apps = [ "lib/main.dart" ]
+  apps = [ [
+        "dart_apptests",
+        "lib/main.dart",
+      ] ]
   sources = [
     "lib/src/connect_to_loader_apptests.dart",
     "lib/src/echo_apptests.dart",
     "lib/src/io_http_apptests.dart",
     "lib/src/io_internet_address_apptests.dart",
     "lib/src/pingpong_apptests.dart",
     "lib/src/versioning_apptests.dart",
     "pubspec.yaml",
   ]
   deps = [
     "//mojo/dart/apptest",
     "//mojo/dart/mojo_services",
     "//mojo/public/interfaces/bindings/tests:versioning_test_client_interfaces",
     "//mojo/public/interfaces/bindings/tests:versioning_test_service_interfaces",
     "//services/dart/test:echo_service_interface",
     "//services/dart/test:pingpong_service_interface",
     "//services/dart/test/echo",
     "//services/dart/test/pingpong",
     "//services/dart/test/pingpong_target",
   ]
 }