{"ast_node_type":"other","tokens":[{"end":51,"kind":"keyword","start":0,"text":"(Some(lhs_ele),"}]}
                (Some(lhs_ele), Some(rhs_ele)) => {
                (Some(ref lhs_ele), Some(ref rhs_ele)) if syntax_element_eq(lhs_ele, rhs_ele) => {}
                    // nodes differ, look for lhs_ele in rhs, if its found we can mark everything up