Support running executables from dependencies.

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

Index: sdk/lib/_internal/pub/test/run/runs_named_app_in_dependency_test.dart
diff --git a/sdk/lib/_internal/pub/test/serve/missing_dependency_file_test.dart b/sdk/lib/_internal/pub/test/run/runs_named_app_in_dependency_test.dart
similarity index 52%
copy from sdk/lib/_internal/pub/test/serve/missing_dependency_file_test.dart
copy to sdk/lib/_internal/pub/test/run/runs_named_app_in_dependency_test.dart
index 46821ba6fe8a72f342c6b9846dc9cb5002f02167..d8b342544faa50fab855da3aba3c0a492868ea8c 100644
--- a/sdk/lib/_internal/pub/test/serve/missing_dependency_file_test.dart
+++ b/sdk/lib/_internal/pub/test/run/runs_named_app_in_dependency_test.dart
@@ -1,18 +1,19 @@
-// Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS d.file
+// 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.
 
-library pub_tests;
-
 import '../descriptor.dart' as d;
 import '../test_pub.dart';
 import 'utils.dart';
 
 main() {
   initConfig();
-  integration("responds with a 404 for a missing files in dependencies", () {
+  integration('runs a named Dart application in a dependency', () {
     d.dir("foo", [
-      d.libPubspec("foo", "0.0.1")
+      d.libPubspec("foo", "1.0.0"),
+      d.dir("bin", [
+        d.file("bar.dart", "main() => print('foobar');")
+      ])
     ]).create();
 
     d.dir(appPath, [
@@ -22,9 +23,9 @@ main() {
     ]).create();
 
     pubGet();
-    pubServe();
-    requestShould404("packages/foo/nope.dart");
-    requestShould404("dir/packages/foo/nope.dart");
-    endPubServe();
+
+    var pub = pubRun(args: ["foo:bar"]);
+    pub.stdout.expect("foobar");
+    pub.shouldExit();
   });
 }