generate less code for serializer

src/main/jastadd/Backend.jadd

@@ -805,9 +805,11 @@ aspect NameResolutionHelper {
       r.generateContextDependentNameResolution(sb);
     }
 
-    for (TypeDecl decl : getTypeDeclList()) {
-      decl.generateContextIndependentNameResolution(sb);
-      sb.append("\n");
+    if (resolverHelper) {
+      for (TypeDecl decl : getTypeDeclList()) {
+        decl.generateContextIndependentNameResolution(sb);
+        sb.append("\n");
+      }
     }
     sb.append("}\n\n");
   }