Resynthesize factory constructors from Kernel.

pkg/analyzer/test/src/summary/resynthesize_kernel_test.dart

 // Copyright (c) 2017, 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.test.src.summary.resynthesize_kernel_test;
 
 import 'dart:async';
 
 import 'package:analyzer/file_system/file_system.dart';
 import 'package:analyzer/file_system/memory_file_system.dart';
@@ skipping 122 matching lines @@
   test_class_alias_with_mixin_members() async {
     await super.test_class_alias_with_mixin_members();
   }
 
   @failingTest
   test_class_constructor_explicit_type_params() async {
     await super.test_class_constructor_explicit_type_params();
   }
 
   @failingTest
-  test_class_constructor_factory() async {
-    await super.test_class_constructor_factory();
-  }
-
-  @failingTest
   test_class_constructor_field_formal_dynamic_dynamic() async {
     await super.test_class_constructor_field_formal_dynamic_dynamic();
   }
 
   @failingTest
   test_class_constructor_field_formal_dynamic_typed() async {
     await super.test_class_constructor_field_formal_dynamic_typed();
   }
 
   @failingTest
@@ skipping 2510 matching lines @@
 class _KernelLibraryResynthesizerContextImpl
     implements KernelLibraryResynthesizerContext {
   /// TODO(scheglov) we don't use this yet, make it private later
   final Map<String, kernel.Library> libraryMap;
 
   @override
   final kernel.Library library;
 
   _KernelLibraryResynthesizerContextImpl(this.libraryMap, this.library);
 }