Dart: Removes name conflicts from generated bindings.

sky/tests/services/network.sky

Index: sky/tests/services/network.sky
diff --git a/sky/tests/services/network.sky b/sky/tests/services/network.sky
index c9e6fd796681a375fe3ded8c32f221286397e38d..dee3ae9ad45ae855b0024095b9442b2fcb4cfa13 100644
--- a/sky/tests/services/network.sky
+++ b/sky/tests/services/network.sky
@@ -12,19 +12,21 @@ import 'package:mojo/services/network/public/interfaces/network_service.mojom.da
 import 'package:mojo/services/network/public/interfaces/url_loader.mojom.dart';
 
 Future<String> run(url) async {
-  var networkService = new NetworkServiceProxy.unbound();
-  embedder.connectToService("mojo:network_service", networkService);
+  var networkServiceProxy = new NetworkServiceProxy.unbound();
+  var networkService = networkServiceProxy.interface;
+  embedder.connectToService("mojo:network_service", networkServiceProxy);
 
   var urlLoaderProxy = new UrlLoaderProxy.unbound();
+  var urlLoader = urlLoaderProxy.interface;
   networkService.createUrlLoader(urlLoaderProxy);
 
   var urlRequest = new UrlRequest()
       ..url = url
       ..autoFollowRedirects = true;
-  var urlResponse = await urlLoaderProxy.start(urlRequest);
+  var urlResponse = await urlLoader.start(urlRequest);
 
-  urlLoaderProxy.close();
-  networkService.close();
+  urlLoaderProxy.impl.close();
+  networkServiceProxy.impl.close();
 
   print("url => ${urlResponse.response.url}");
   print("status_line => ${urlResponse.response.statusLine}");