Add documentationComment for Class to Kernel. Parse it. Resynthesize in Analyzer.

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 212 matching lines @@
   test_class_constructor_implicit_type_params() async {
     await super.test_class_constructor_implicit_type_params();
   }
 
   @failingTest
   test_class_constructor_params() async {
     await super.test_class_constructor_params();
   }
 
   @failingTest
-  test_class_documented() async {
-    await super.test_class_documented();
-  }
-
-  @failingTest
   test_class_documented_tripleSlash() async {
     await super.test_class_documented_tripleSlash();
   }
 
   @failingTest
-  test_class_documented_with_references() async {
-    await super.test_class_documented_with_references();
+  test_class_documented_withLeadingNotDocumentation() async {
+    await super.test_class_documented_withLeadingNotDocumentation();
   }
 
   @failingTest
-  test_class_documented_with_windows_line_endings() async {
-    await super.test_class_documented_with_windows_line_endings();
-  }
-
-  @failingTest
   test_class_field_const() async {
     await super.test_class_field_const();
   }
 
   @failingTest
   test_class_field_implicit_type() async {
     await super.test_class_field_implicit_type();
   }
 
   @failingTest
@@ skipping 2405 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);
 }