Add requestTime to responses

pkg/analysis_server/test/domain_completion_test.dart

Index: pkg/analysis_server/test/domain_completion_test.dart
diff --git a/pkg/analysis_server/test/domain_completion_test.dart b/pkg/analysis_server/test/domain_completion_test.dart
index 54728b5ce65cf0be9a3819db2fe91c2f976fd9e0..4f54992d3fe4396332c993c9709cfa73ba9e8322 100644
--- a/pkg/analysis_server/test/domain_completion_test.dart
+++ b/pkg/analysis_server/test/domain_completion_test.dart
@@ -711,7 +711,7 @@ class B extends A {m() {^}}
           DART_RELEVANCE_DEFAULT, 'plugin completion', 3, 0, false, false)
     ]);
     pluginManager.broadcastResults = <PluginInfo, Future<plugin.Response>>{
-      info: new Future.value(result.toResponse('-'))
+      info: new Future.value(result.toResponse('-', 1))
     };
     await getSuggestions();
     assertHasResult(CompletionSuggestionKind.IDENTIFIER, 'plugin completion',