Issue 25316. Quick Fix for removing 'final' keyword.

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 'dart:async';
 
 import 'package:analysis_server/plugin/edit/fix/fix_core.dart';
 import 'package:analysis_server/src/plugin/server_plugin.dart';
@@ skipping 151 matching lines @@
   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");
   static const INSERT_SEMICOLON =
       const FixKind('INSERT_SEMICOLON', 50, "Insert ';'");
   static const MAKE_CLASS_ABSTRACT =
       const FixKind('MAKE_CLASS_ABSTRACT', 50, "Make class '{0}' abstract");
   static const REMOVE_DEAD_CODE =
       const FixKind('REMOVE_DEAD_CODE', 50, "Remove dead code");
+  static const MAKE_FIELD_NOT_FINAL =
+      const FixKind('MAKE_FIELD_NOT_FINAL', 50, "Make field '{0}' not final");
   static const REMOVE_PARAMETERS_IN_GETTER_DECLARATION = const FixKind(
       'REMOVE_PARAMETERS_IN_GETTER_DECLARATION',
       50,
       "Remove parameters in getter declaration");
   static const REMOVE_PARENTHESIS_IN_GETTER_INVOCATION = const FixKind(
       'REMOVE_PARENTHESIS_IN_GETTER_INVOCATION',
       50,
       "Remove parentheses in getter invocation");
   static const REMOVE_UNNECESSARY_CAST =
       const FixKind('REMOVE_UNNECESSARY_CAST', 50, "Remove unnecessary cast");
@@ skipping 41 matching lines @@
   @override
   final AnalysisError error;
 
   FixContextImpl(this.resourceProvider, this.analysisContext, this.error);
 
   FixContextImpl.from(FixContext other)
       : resourceProvider = other.resourceProvider,
         analysisContext = other.analysisContext,
         error = other.error;
 }