send completion notification even if offset beyond eof

pkg/analysis_server/lib/src/services/completion/dart_completion_manager.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 services.completion.dart;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/completion/arglist_computer.dart';
@@ skipping 106 matching lines @@
    * Compute suggestions based upon cached information only
    * then send an initial response to the client.
    * Return a list of computers for which [computeFull] should be called
    */
   List<DartCompletionComputer> computeFast(DartCompletionRequest request) {
     return request.performance.logElapseTime('computeFast', () {
       CompilationUnit unit = context.parseCompilationUnit(source);
       request.unit = unit;
       request.node = new NodeLocator.con1(request.offset).searchWithin(unit);
       request.target = new CompletionTarget.forOffset(unit, request.offset);
+      request.replacementOffset = request.offset;
+      request.replacementLength = 0;
       if (request.node == null) {
+        sendResults(request, true);
         return [];
       }
 
-      request.replacementOffset = request.offset;
-      request.replacementLength = 0;
       var entity = request.target.entity;
       Token token = entity is AstNode ? entity.beginToken : entity;
       if (token != null &&
           token.offset <= request.offset &&
           (token.type == TokenType.KEYWORD ||
               token.type == TokenType.IDENTIFIER)) {
         request.replacementOffset = token.offset;
         request.replacementLength = token.length;
       }
 
@@ skipping 240 matching lines @@
             parameterNames: suggestion.parameterNames,
             parameterTypes: suggestion.parameterTypes,
             requiredParameterCount: suggestion.requiredParameterCount,
             hasNamedParameters: suggestion.hasNamedParameters,
             returnType: suggestion.returnType,
             element: suggestion.element);
       }
     }
   }
 }