Remove the old task model

pkg/analyzer/test/src/task/options_work_manager_test.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 test.src.task.options_work_manager_test;
 
 import 'package:analyzer/src/context/cache.dart';
 import 'package:analyzer/src/generated/engine.dart'
     show
         AnalysisEngine,
@@ skipping 93 matching lines @@
     expect_sourceQueue([source2]);
     // remove source2
     manager.applyChange([], [], [source2]);
     expect_sourceQueue([]);
     // remove source3
     manager.applyChange([], [], [source3]);
     expect_sourceQueue([]);
   }
 
   void test_applyPriorityTargets() {
-    when(context.shouldErrorsBeAnalyzed(source2, null)).thenReturn(true);
-    when(context.shouldErrorsBeAnalyzed(source3, null)).thenReturn(true);
+    when(context.shouldErrorsBeAnalyzed(source2)).thenReturn(true);
+    when(context.shouldErrorsBeAnalyzed(source3)).thenReturn(true);
     manager.priorityResultQueue
         .add(new TargetedResult(source1, ANALYSIS_OPTIONS_ERRORS));
     manager.priorityResultQueue
         .add(new TargetedResult(source2, ANALYSIS_OPTIONS_ERRORS));
     // -source1 +source3
     manager.applyPriorityTargets([source2, source3]);
     expect(
         manager.priorityResultQueue,
         unorderedEquals([
           new TargetedResult(source2, ANALYSIS_OPTIONS_ERRORS),
@@ skipping 152 matching lines @@
     return new AnalysisErrorInfoImpl(
         errors, getCacheEntry(source).getValue(LINE_INFO));
   }
 
   @override
   ChangeNoticeImpl getNotice(Source source) =>
       _pendingNotices.putIfAbsent(source, () => new ChangeNoticeImpl(source));
 
   noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
 }