{"ast_node_type":"variable","tokens":[{"end":42,"kind":"keyword","start":0,"text":"let"}]}
    let va_ndx_offset = va_reg_offset + 4;
    let va_reg_offset = 4;
    let offset_ptr = bx.inbounds_ptradd(va_list_addr, bx.cx.const_usize(va_ndx_offset));