{"ast_node_type":"variable","tokens":[{"end":31,"kind":"keyword","start":0,"text":"let"}]}
                        let y =
                    sym::ctlz | sym::ctlz_nonzero | sym::cttz | sym::cttz_nonzero => {
                            self.const_bool(name == sym::ctlz_nonzero || name == sym::cttz_nonzero);