Add MapBasedTaskInput.

pkg/analyzer/lib/src/task/dart.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.dart;
 
 import 'dart:collection';
 
 import 'package:analyzer/src/generated/ast.dart';
 import 'package:analyzer/src/generated/element.dart';
@@ skipping 304 matching lines @@
 
   /**
    * Return a map from the names of the inputs of this kind of task to the task
    * input descriptors describing those inputs for a task with the given
    * [target].
    */
   static Map<String, TaskInput> buildInputs(AnalysisTarget target) {
     return <String, TaskInput>{
       DEFINING_BUILT_UNIT_INPUT_NAME: new SimpleTaskInput(target, BUILT_UNIT),
       PART_BUILT_UNITS_INPUT_NAME:
-          new ListBasedTaskInput<List<Source>, CompilationUnit>(
+          new ListBasedTaskInput<Source, CompilationUnit>(
               new SimpleTaskInput<List<Source>>(target, INCLUDED_PARTS),
               (Source includedSource) => new SimpleTaskInput<CompilationUnit>(
                   includedSource, BUILT_UNIT))
     };
   }
 
   /**
    * Create a [BuildLibraryElementTask] based on the given [target] in the
    * given [context].
    */
@@ skipping 266 matching lines @@
   }
 
   /**
    * Create a [ScanDartTask] based on the given [target] in the given [context].
    */
   static ScanDartTask createTask(
       AnalysisContext context, AnalysisTarget target) {
     return new ScanDartTask(context, target);
   }
 }