Replace typed_mock with mockito in analyzer.

pkg/analyzer/test/src/task/general_test.dart

Index: pkg/analyzer/test/src/task/general_test.dart
diff --git a/pkg/analyzer/test/src/task/general_test.dart b/pkg/analyzer/test/src/task/general_test.dart
index 819a3af0e4af34920eb323788c876e2e4c7c4931..cb3eecbb5a47aef14548be617413da6625d0e0cf 100644
--- a/pkg/analyzer/test/src/task/general_test.dart
+++ b/pkg/analyzer/test/src/task/general_test.dart
@@ -9,9 +9,9 @@ import 'package:analyzer/src/generated/source.dart';
 import 'package:analyzer/src/task/general.dart';
 import 'package:analyzer/task/general.dart';
 import 'package:analyzer/task/model.dart';
+import 'package:mockito/mockito.dart';
 import 'package:test/test.dart';
 import 'package:test_reflective_loader/test_reflective_loader.dart';
-import 'package:typed_mock/typed_mock.dart';
 
 import '../../generated/test_support.dart';
 
@@ -80,4 +80,4 @@ class GetContentTaskTest extends EngineTestCase {
   }
 }
 
-class _MockContext extends TypedMock implements AnalysisContext {}
+class _MockContext extends Mock implements AnalysisContext {}