{"ast_node_type":"variable","tokens":[{"end":91,"kind":"keyword","start":0,"text":"let"}]}
            let (ret_lane_count, ret_lane_ty) = ret.layout().ty.simd_size_and_type(fx.tcx);
            let pointee_size = fx.layout_of(pointee_ty).size.bytes();
            let ret_lane_layout = fx.layout_of(ret_lane_ty);