Options processing API update (#25126).

pkg/analyzer/lib/plugin/options.dart

 // Copyright (c) 2015, 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.
 
 /// Support for client code that wants to consume options contributed to the
 /// analysis options file.
 library analyzer.plugin.options;
 
 import 'package:analyzer/src/generated/engine.dart';
 import 'package:analyzer/src/generated/error.dart';
@@ skipping 51 matching lines @@
   /// Called when an options file is processed.
   ///
   /// The options file is processed on analyzer initialization and
   /// subsequently when the file is changed on disk.  In the event of a
   /// change notification, note that the notification simply indicates
   /// a change on disk. Content in specific option scopes may or may not
   /// be different. It is up to the implementer to check whether specific
   /// options have changed and to handle those changes appropriately. In
   /// addition to the [options] map, the associated analysis [context] is
   /// provided as well to allow for context-specific configuration.
-  void optionsProcessed(AnalysisContext context, Map<String, YamlNode> options);
+  void optionsProcessed(AnalysisContext context, Map<String, Object> options);
 }
 
 /// Validates options as defined in an analysis options file.
 ///
 /// Clients may implement this class when implementing plugins.
 ///
 /// See [OptionsProcessor] for a description of the options file format.
 ///
 abstract class OptionsValidator {
   /// Validate [options], reporting any errors to the given [reporter].
   void validate(ErrorReporter reporter, Map<String, YamlNode> options);
 }