Fixes for formatting and complete completion stub.

pkg/analysis_server/lib/src/domain_completion.dart

Index: pkg/analysis_server/lib/src/domain_completion.dart
diff --git a/pkg/analysis_server/lib/src/domain_completion.dart b/pkg/analysis_server/lib/src/domain_completion.dart
index 4c2221a6ff016e2beb481e7d1a4199d4e0b8b5e3..aefb37dabd758b42d4635e3f4996045bd1a0df7f 100644
--- a/pkg/analysis_server/lib/src/domain_completion.dart
+++ b/pkg/analysis_server/lib/src/domain_completion.dart
@@ -104,7 +104,12 @@ class CompletionDomainHandler implements RequestHandler {
   Response handleRequest(Request request) {
     if (server.options.enableNewAnalysisDriver) {
       // TODO(scheglov) implement for the new analysis driver
-      return new CompletionGetSuggestionsResult('0').toResponse(request.id);
+      String completionId = (_nextCompletionId++).toString();
+      new Future(() {
+        sendCompletionNotification(completionId, 0, 0, []);
+      });
+      return new CompletionGetSuggestionsResult(completionId)
+          .toResponse(request.id);
     }
     if (server.searchEngine == null) {
       return new Response.noIndexGenerated(request);