Initial support for execution domain

pkg/analysis_server/lib/src/search/search_domain.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 search.domain;
 
 import 'package:analysis_server/src/analysis_server.dart';
 import 'package:analysis_server/src/constants.dart';
 import 'package:analysis_server/src/protocol.dart' as protocol;
 import 'package:analysis_server/src/search/element_references.dart';
@@ skipping 10 matching lines @@
    * The analysis server that is using this handler to process requests.
    */
   final AnalysisServer server;
 
   /**
    * The [SearchEngine] for this server.
    */
   SearchEngine searchEngine;
 
   /**
-   * The next searc response id.
+   * The next search response id.
    */
   int _nextSearchId = 0;
 
   /**
    * Initialize a newly created handler to handle requests for the given [server].
    */
   SearchDomainHandler(this.server) {
     searchEngine = server.searchEngine;
   }
 
@@ skipping 125 matching lines @@
   void _sendSearchNotification(String searchId, bool isLast,
       Iterable<protocol.SearchResult> results) {
     server.sendNotification(new protocol.SearchResultsParams(searchId,
         results.toList(), isLast).toNotification());
   }
 
   static protocol.SearchResult toResult(SearchMatch match) {
     return new protocol.SearchResult.fromMatch(match);
   }
 }