Cause "implement methods" to be sorted before "make abstract"

pkg/analysis_server/lib/src/services/correction/fix.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 analysis_server.src.services.correction.fix;
 
 import 'package:analysis_server/edit/fix/fix_core.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/src/generated/engine.dart';
@@ skipping 67 matching lines @@
       const FixKind('CREATE_FILE', 50, "Create file '{0}'");
   static const CREATE_FUNCTION =
       const FixKind('CREATE_FUNCTION', 51, "Create function '{0}'");
   static const CREATE_GETTER =
       const FixKind('CREATE_GETTER', 50, "Create getter '{0}'");
   static const CREATE_LOCAL_VARIABLE =
       const FixKind('CREATE_LOCAL_VARIABLE', 50, "Create local variable '{0}'");
   static const CREATE_METHOD =
       const FixKind('CREATE_METHOD', 50, "Create method '{0}'");
   static const CREATE_MISSING_OVERRIDES = const FixKind(
-      'CREATE_MISSING_OVERRIDES', 50, "Create {0} missing override(s)");
+      'CREATE_MISSING_OVERRIDES', 49, "Create {0} missing override(s)");
   static const CREATE_NO_SUCH_METHOD = const FixKind(
       'CREATE_NO_SUCH_METHOD', 51, "Create 'noSuchMethod' method");
   static const IMPORT_LIBRARY_PREFIX = const FixKind('IMPORT_LIBRARY_PREFIX',
       51, "Use imported library '{0}' with prefix '{1}'");
   static const IMPORT_LIBRARY_PROJECT =
       const FixKind('IMPORT_LIBRARY_PROJECT', 49, "Import library '{0}'");
   static const IMPORT_LIBRARY_SDK =
       const FixKind('IMPORT_LIBRARY_SDK', 49, "Import library '{0}'");
   static const IMPORT_LIBRARY_SHOW =
       const FixKind('IMPORT_LIBRARY_SHOW', 49, "Update library '{0}' import");
@@ skipping 32 matching lines @@
   static const USE_CONST = const FixKind('USE_CONST', 50, "Change to constant");
   static const USE_EFFECTIVE_INTEGER_DIVISION = const FixKind(
       'USE_EFFECTIVE_INTEGER_DIVISION',
       50,
       "Use effective integer division ~/");
   static const USE_EQ_EQ_NULL =
       const FixKind('USE_EQ_EQ_NULL', 50, "Use == null instead of 'is Null'");
   static const USE_NOT_EQ_NULL =
       const FixKind('USE_NOT_EQ_NULL', 50, "Use != null instead of 'is! Null'");
 }