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

pkg/front_end/test/fasta/shaker_test.dart

Index: pkg/front_end/test/fasta/shaker_test.dart
diff --git a/pkg/front_end/test/fasta/shaker_test.dart b/pkg/front_end/test/fasta/shaker_test.dart
index 8c118bdceb4b81cb60dd5a91c27d2a43d9aa54fb..6ba5eb8254608d28c8c5f491b9f0b52496da4f77 100644
--- a/pkg/front_end/test/fasta/shaker_test.dart
+++ b/pkg/front_end/test/fasta/shaker_test.dart
@@ -105,8 +105,8 @@ class BuildProgram
           context.uriTranslator,
           new VmFastaTarget(new TargetFlags(strongMode: false)));
       dillTarget.loader.appendLibraries(platformOutline);
-      var sourceTarget = new KernelTarget(
-          PhysicalFileSystem.instance, dillTarget, context.uriTranslator);
+      var sourceTarget = new KernelTarget(PhysicalFileSystem.instance, false,
+          dillTarget, context.uriTranslator);
       await dillTarget.buildOutlines();
 
       var inputUri = description.uri;