Attempt to fix the build

pkg/analyzer/lib/src/task/inputs.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.
 
 library analyzer.src.task.inputs;
 
 import 'dart:collection';
 
 import 'package:analyzer/task/model.dart';
 
@@ skipping 283 matching lines @@
     }
     // No more Map values/keys to transform.
     return false;
   }
 }
 
 /**
  * An input to an [AnalysisTask] that is computed by mapping the value of
  * another task input to a list of values.
  */
-class ObjectToListTaskInput<E> extends TaskInputImpl with ListTaskInputMixin<E>
+class ObjectToListTaskInput<E> extends TaskInputImpl<List<E>> with ListTaskInputMixin<E>
     implements ListTaskInput<E> {
   /**
    * The input used to compute the value to be mapped.
    */
   final TaskInput baseInput;
 
   /**
    * The function used to map the value of the base input to the list of values.
    */
   final Mapper<Object, List<E>> mapper;
@@ skipping 11 matching lines @@
   @override
   ListTaskInput /*<V>*/ toListOf(ResultDescriptor /*<V>*/ valueResult) {
     return new ListToListTaskInput<E, dynamic /*V*/ >(
         this, valueResult.of as dynamic);
   }
 
   @override
   MapTaskInput<AnalysisTarget, dynamic /*V*/ > toMapOf(
       ResultDescriptor /*<V>*/ valueResult) {
     return new ListToMapTaskInput<AnalysisTarget, dynamic /*V*/ >(
-        this, valueResult.of);
+        this as dynamic, valueResult.of);
   }
 }
 
 /**
  * A [TaskInputBuilder] used to build an input based on a [SimpleTaskInput].
  */
 class ObjectToListTaskInputBuilder<E> implements TaskInputBuilder<List<E>> {
   /**
    * The input being built.
    */
@@ skipping 484 matching lines @@
       return false;
     }
     _baseListElement = _baseList[_baseListIndex];
     currentBuilder = input.generateTaskInputs(_baseListElement).createBuilder();
     return currentBuilder.moveNext();
   }
 
   void _addResultElement(B baseElement, E resultElement);
   void _initResultValue();
 }