Get rid of hokey dependencyMapList stuff.

sdk/lib/_internal/pub/test/dev_dependency_test.dart

 // Copyright (c) 2013, 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 'package:path/path.dart' as path;
 
 import 'descriptor.dart' as d;
 import 'test_pub.dart';
 
 main() {
@@ skipping 27 matching lines @@
       ]),
       d.dir("bar", [
         d.file("bar.dart", 'main() => "bar";')
       ])
     ]).validate();
   });
 
   integration("includes dev dependency's transitive dependencies", () {
     d.dir('foo', [
       d.libDir('foo'),
-      d.libPubspec('foo', '0.0.1', deps: [
-        {"path": "../bar"}
-      ])
+      d.libPubspec('foo', '0.0.1', deps: {
+        "bar": {"path": "../bar"}
+      })
     ]).create();
 
     d.dir('bar', [
       d.libDir('bar'),
       d.libPubspec('bar', '0.0.1')
     ]).create();
 
     d.dir(appPath, [
       d.pubspec({
         "name": "myapp",
@@ skipping 44 matching lines @@
     pubInstall();
 
     d.dir(packagesPath, [
       d.dir("foo", [
         d.file("foo.dart", 'main() => "foo";')
       ]),
       d.nothing("bar")
     ]).validate();
   });
 }