fix keyword completion in class body

pkg/analysis_server/lib/src/services/completion/keyword_computer.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.computer.dart.keyword;
 
 import 'dart:async';
 
 import 'package:analysis_server/src/protocol.dart';
 import 'package:analysis_server/src/services/completion/dart_completion_manager.dart';
@@ skipping 52 matching lines @@
       Keyword.WHILE
     ]);
   }
 
   @override
   visitClassDeclaration(ClassDeclaration node) {
     // Don't suggest class name
     if (entity == node.name) {
       return;
     }
-    if (entity == node.rightBracket) {
+    if (entity == node.rightBracket || entity is ClassMember) {
       _addSuggestions([
         Keyword.CONST,
         Keyword.DYNAMIC,
         Keyword.FACTORY,
         Keyword.FINAL,
         Keyword.GET,
         Keyword.OPERATOR,
         Keyword.SET,
         Keyword.STATIC,
         Keyword.VAR,
@@ skipping 77 matching lines @@
         return false;
       }
       AstNode parent = body.parent;
       if (parent is ConstructorDeclaration || parent is MethodDeclaration) {
         return true;
       }
       node = parent;
     }
   }
 }