I can't even describe my disappointment at interfaces

src/heap_area.rs

@@ -256,6 +256,7 @@ impl ObjectArea {
         match self.get_entry(reference) {
             CompartmentEntry::Object(o) => class_store.get_class_objectref_from_index(o.class_index),
             CompartmentEntry::ReferenceArray(a) => a.class_ref,
+            CompartmentEntry::ByteArray(a) => a.class_ref,
             _ => unreachable!(),
         }
     }