Integration of the new analysis driver, behind a flag.

pkg/analysis_server/lib/src/domain_completion.dart

 // Copyright (c) 2014, 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.
 
 library domain.completion;
 
 import 'dart:async';
 
 import 'package:analysis_server/plugin/protocol/protocol.dart';
 import 'package:analysis_server/src/analysis_server.dart';
@@ skipping 84 matching lines @@
     // TODO (danrubel) if request is obsolete
     // (processAnalysisRequest returns false)
     // then send empty results
 
     return new CompletionResult(
         request.replacementOffset, request.replacementLength, suggestions);
   }
 
   @override
   Response handleRequest(Request request) {
+    if (server.options.enableNewAnalysisDriver) {
+      // TODO(scheglov) implement for the new analysis driver
+      return new CompletionGetSuggestionsResult('0').toResponse(request.id);
+    }
     if (server.searchEngine == null) {
       return new Response.noIndexGenerated(request);
     }
     return runZoned(() {
       try {
         String requestName = request.method;
         if (requestName == COMPLETION_GET_SUGGESTIONS) {
           return processRequest(request);
         }
       } on RequestFailure catch (exception) {
@@ skipping 132 matching lines @@
   final int replacementOffset;
 
   /**
    * The suggested completions.
    */
   final List<CompletionSuggestion> suggestions;
 
   CompletionResult(
       this.replacementOffset, this.replacementLength, this.suggestions);
 }