{"ast_node_type":"other","tokens":[{"end":46,"kind":"keyword","start":0,"text":"CValueInner::ByRef(ptr,"}]}
            CValueInner::ByRef(ptr, None) => {
            CValueInner::ByVal(_) | CValueInner::ByValPair(_, _) => unreachable!(),
                let field_offset = lane_layout.size * lane_idx;