Issue 13918. final fields induce setters that are illegal to call

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/element/handle/PropertyAccessorElementHandle.java

 /*
  * Copyright (c) 2013, the Dart project authors.
  * 
  * Licensed under the Eclipse Public License v1.0 (the "License"); you may not use this file except
  * in compliance with the License. You may obtain a copy of the License at
  * 
  * http://www.eclipse.org/legal/epl-v10.html
  * 
  * Unless required by applicable law or agreed to in writing, software distributed under the License
  * is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
@@ skipping 46 matching lines @@
   public PropertyInducingElement getVariable() {
     return getActualElement().getVariable();
   }
 
   @Override
   public boolean isAbstract() {
     return getActualElement().isAbstract();
   }
 
   @Override
+  public boolean isExcludedSetter() {
+    return getActualElement().isExcludedSetter();
+  }
+
+  @Override
   public boolean isGetter() {
     return getActualElement().isGetter();
   }
 
   @Override
   public boolean isSetter() {
     return getActualElement().isSetter();
   }
 
   @Override
   protected PropertyAccessorElement getActualElement() {
     return (PropertyAccessorElement) super.getActualElement();
   }
 }