Resynthesize interfaces 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/dart/element/type.dart';
 import 'package:analyzer/file_system/file_system.dart';
@@ skipping 273 matching lines @@
   test_class_implicitField_getterFirst() async {
     await super.test_class_implicitField_getterFirst();
   }
 
   @failingTest
   test_class_implicitField_setterFirst() async {
     await super.test_class_implicitField_setterFirst();
   }
 
   @failingTest
-  test_class_interfaces() async {
-    await super.test_class_interfaces();
-  }
-
-  @failingTest
-  test_class_interfaces_unresolved() async {
-    await super.test_class_interfaces_unresolved();
-  }
-
-  @failingTest
   test_class_method_abstract() async {
     await super.test_class_method_abstract();
   }
 
   @failingTest
   test_class_method_external() async {
     await super.test_class_method_external();
   }
 
   @failingTest
@@ skipping 2376 matching lines @@
   LibraryElementImpl getLibrary(String uriStr) {
     return _libraryMap.putIfAbsent(uriStr, () {
       var kernel = _kernelMap[uriStr];
       if (kernel == null) return null;
       var libraryContext =
           new _KernelLibraryResynthesizerContextImpl(this, kernel);
       return new LibraryElementImpl.forKernel(_analysisContext, libraryContext);
     });
   }
 }