Generalize DeclarationBuilder.resolveTypes.

pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart

Index: pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart
diff --git a/pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart b/pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart
index d806c3be8b7dcb9a4b7adceaf1d7d2c4e70bd93e..0211cc4b197c6f6d549e48896a4486ddae0b5cf5 100644
--- a/pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart
+++ b/pkg/front_end/lib/src/fasta/dill/dill_class_builder.dart
@@ -29,7 +29,7 @@ class DillClassBuilder extends KernelClassBuilder {
   DillClassBuilder(Class cls, DillLibraryBuilder parent)
       : cls = cls,
         super(null, null, cls.name, null, null, null, <String, Builder>{},
-            null, parent, cls.fileOffset);
+            parent, cls.fileOffset);
 
   void addMember(Member member) {
     DillMemberBuilder builder = new DillMemberBuilder(member, this);