{"ast_node_type":"other","tokens":[{"end":63,"kind":"keyword","start":0,"text":"full_binders.extend(supertrait_bound_vars);"}]}
                    full_binders.extend(supertrait_bound_vars);
                        self.rbv.late_bound_vars.get_mut_or_insert_default(hir_id.local_id).clone();
                    break (full_binders, BinderScopeType::Concatenating);