{"ast_node_type":"other","tokens":[{"end":53,"kind":"keyword","start":0,"text":"//"}]}
        // Compare binops handles by `codegen_binop`.
        BinOp::BitOr => b.bor(lhs, rhs),
        _ => unreachable!("{:?}({:?}, {:?})", bin_op, in_lhs, in_rhs),