Support running executables from dependencies.

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

Index: sdk/lib/_internal/pub/test/run/errors_if_only_transitive_dependency_test.dart
diff --git a/sdk/lib/_internal/pub/test/run/errors_if_only_transitive_dependency_test.dart b/sdk/lib/_internal/pub/test/run/errors_if_only_transitive_dependency_test.dart
new file mode 100644
index 0000000000000000000000000000000000000000..ca9493f2b8f9edff97cd5a5141ec62d0ce8d94d9
--- /dev/null
+++ b/sdk/lib/_internal/pub/test/run/errors_if_only_transitive_dependency_test.dart
@@ -0,0 +1,39 @@
+// 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';
+import 'utils.dart';
+
+main() {
+  initConfig();
+  integration('Errors if the script is in a non-immediate dependency.', () {
+    d.dir("foo", [
+      d.libPubspec("foo", "1.0.0"),
+      d.dir("bin", [
+        d.file("bar.dart", "main() => print('foobar');")
+      ])
+    ]).create();
+
+    d.dir("bar", [
+      d.libPubspec("bar", "1.0.0", deps: {
+        "foo": {"path": "../foo"}
+      })
+    ]).create();
+
+    d.dir(appPath, [
+      d.appPubspec({
+        "bar": {"path": "../bar"}
+      })
+    ]).create();
+
+    pubGet();
+
+    var pub = pubRun(args: ["foo:script"]);
+    pub.stderr.expect('Package "foo" is not an immediate dependency.');
+    pub.stderr.expect('Cannot run executables in transitive dependencies.');
+    pub.shouldExit(exit_codes.DATA);
+  });
+}