{"ast_node_type":"variable","tokens":[{"end":52,"kind":"keyword","start":0,"text":"if"}]}
                    if let Some(item_ev) = item_ev {
                if let Some(ctor_def_id) = def.ctor_def_id() {
                        self.update(ctor_def_id.expect_local(), item_ev, Level::Reachable);