Don't implicitly run "pub get".

test/dart2js/does_not_compile_until_its_output_is_requested_test.dart

 // Copyright (c) 2014, 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 'package:scheduled_test/scheduled_stream.dart';
 
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import '../serve/utils.dart';
 
 main() {
   integration("does not compile until its output is requested", () {
     d.dir(appPath, [
       d.pubspec({
         "name": "myapp",
         "version": "0.0.1",
       }),
       d.dir("web", [
         d.file("syntax-error.dart", "syntax error")
       ])
     ]).create();
 
-    var server = pubServe(shouldGetFirst: true);
+    pubGet();
+    var server = pubServe();
     server.stdout.expect("Build completed successfully");
 
     // Once we request the output, it should start compiling and fail.
     requestShould404("syntax-error.dart.js");
     server.stdout.expect(emitsLines(
         "[Info from Dart2JS]:\n"
         "Compiling myapp|web/syntax-error.dart..."));
     server.stdout.expect(consumeThrough("Build completed with 1 errors."));
     endPubServe();
   });
 }