{"ast_node_type":"variable","tokens":[{"end":81,"kind":"keyword","start":0,"text":"let"}]}
    let args = parse_asm_args(&mut ecx.new_parser_from_tts(tts), sp, asm_macro)?;
) -> PResult<'a, ValidatedAsmArgs> {
    validate_asm_args(ecx, asm_macro, args)