Make source be a target

pkg/analyzer/test/src/task/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.manager_test;
 
 import 'package:analyzer/src/generated/java_engine.dart';
 import 'package:analyzer/src/task/manager.dart';
-import 'package:analyzer/src/task/targets.dart';
 import 'package:analyzer/task/model.dart';
 import 'package:unittest/unittest.dart';
 
 import '../../generated/test_support.dart';
 import '../../reflective_tests.dart';
 
 main() {
   groupSep = ' | ';
   runReflectiveTests(TaskManagerTest);
 }
@@ skipping 30 matching lines @@
     expect(manager, isNotNull);
     expect(manager.generalResults, isEmpty);
     expect(manager.priorityResults, isEmpty);
   }
 
   test_findTask_defined() {
     TaskManager manager = new TaskManager();
     TaskDescriptor descriptor =
         new TaskDescriptor('task', null, null, [result1]);
     manager.addTaskDescriptor(descriptor);
-    AnalysisTarget target = new SourceTarget(null);
+    AnalysisTarget target = new TestSource();
     expect(manager.findTask(target, result1), descriptor);
   }
 
   test_findTask_empty() {
     TaskManager manager = new TaskManager();
-    AnalysisTarget target = new SourceTarget(null);
+    AnalysisTarget target = new TestSource();
     expect(
         () => manager.findTask(target, result1),
         throwsA(new isInstanceOf<AnalysisException>()));
   }
 
   test_findTask_multiple() {
     TaskManager manager = new TaskManager();
     TaskDescriptor descriptor1 =
         new TaskDescriptor('task1', null, null, [result1]);
     manager.addTaskDescriptor(descriptor1);
     TaskDescriptor descriptor2 =
         new TaskDescriptor('task2', null, null, [result1]);
     manager.addTaskDescriptor(descriptor2);
     TaskDescriptor descriptor3 =
         new TaskDescriptor('task3', null, null, [result2]);
     manager.addTaskDescriptor(descriptor3);
 
-    AnalysisTarget target = new SourceTarget(null);
+    AnalysisTarget target = new TestSource();
     TaskDescriptor task = manager.findTask(target, result1);
     expect(task == descriptor1 || task == descriptor2, true);
   }
 
   test_findTask_undefined() {
     TaskManager manager = new TaskManager();
     TaskDescriptor descriptor =
         new TaskDescriptor('task', null, null, [result1]);
     manager.addTaskDescriptor(descriptor);
-    AnalysisTarget target = new SourceTarget(null);
+    AnalysisTarget target = new TestSource();
     expect(
         () => manager.findTask(target, result2),
         throwsA(new isInstanceOf<AnalysisException>()));
   }
 
   test_removeGeneralResult_absent() {
     TaskManager manager = new TaskManager();
     manager.addGeneralResult(result1);
     Set<ResultDescriptor> results = manager.generalResults;
     expect(results, unorderedEquals([result1]));
@@ skipping 20 matching lines @@
   test_removePriorityResult_present() {
     TaskManager manager = new TaskManager();
     manager.addPriorityResult(result1);
     manager.addPriorityResult(result2);
     Set<ResultDescriptor> results = manager.priorityResults;
     expect(results, unorderedEquals([result1, result2]));
     manager.removePriorityResult(result1);
     expect(results, unorderedEquals([result2]));
   }
 }