{"ast_node_type":"variable","tokens":[{"end":49,"kind":"keyword","start":0,"text":"let"}]}
    let c = int0.value_field(fx, FieldIdx::ZERO);
    let int0 = crate::num::codegen_checked_int_binop(fx, bin_op, a, b);
    let cb0 = int0.value_field(fx, FieldIdx::new(1)).load_scalar(fx);