Add requestTime to responses

pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart

Index: pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart
diff --git a/pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart b/pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart
index 3334780e4c81b4a69c253fe9ea558b3e556a45c2..b47369c480494323ec1b15a41fc91462e618925d 100644
--- a/pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart
+++ b/pkg/analyzer_plugin/test/src/channel/isolate_channel_test.dart
@@ -69,7 +69,7 @@ class PluginIsolateChannelTest {
   }
 
   void test_sendResponse() {
-    Response response = new PluginShutdownResult().toResponse('3');
+    Response response = new PluginShutdownResult().toResponse('3', 1);
     channel.sendResponse(response);
     expect(sendPort.sentMessages, hasLength(1));
     expect(sendPort.sentMessages[0], response.toJson());