Fix a crash in Table::dump_objects() when the table has an enum strin…

…g column

src/realm/cluster.cpp

@@ -1392,6 +1392,7 @@ void Cluster::dump_objects(int64_t key_offset, std::string lead) const
                 }
                 case col_type_String: {
                     ArrayString arr(m_alloc);
+                    set_spec(arr, col.get_index());
                     ref_type ref = Array::get_as_ref(j);
                     arr.init_from_ref(ref);
                     std::cout << ", " << arr.get(i);