472     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_gettabinfo()
511     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_getwininfo()
567     if (rettv_list_alloc(rettv) == FAIL)  in f_getwinpos()
570     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_getwinpos()
638     if (in_vim9script() && check_for_opt_string_arg(argvars, 0) == FAIL)  in f_tabpagenr()
671 	    && (check_for_number_arg(argvars, 0) == FAIL  in f_tabpagewinnr()
672 		|| check_for_opt_string_arg(argvars, 1) == FAIL))  in f_tabpagewinnr()
700 	    && (check_for_number_arg(argvars, 0) == FAIL  in f_win_execute()
701 		|| check_for_string_or_list_arg(argvars, 1) == FAIL  in f_win_execute()
702 		|| check_for_opt_string_arg(argvars, 2) == FAIL))  in f_win_execute()
730     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_win_findbuf()
733     if (rettv_list_alloc(rettv) != FAIL)  in f_win_findbuf()
744 	    && (check_for_opt_number_arg(argvars, 0) == FAIL  in f_win_getid()
746 		    && check_for_opt_number_arg(argvars, 1) == FAIL)))  in f_win_getid()
762     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_win_gotoid()
788     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_win_id2tabwin()
791     if (rettv_list_alloc(rettv) != FAIL)  in f_win_id2tabwin()
801     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_win_id2win()
815     if (rettv_list_alloc(rettv) == FAIL)  in f_win_screenpos()
818     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_win_screenpos()
881 	    && (check_for_number_arg(argvars, 0) == FAIL  in f_win_splitmove()
882 		|| check_for_number_arg(argvars, 1) == FAIL  in f_win_splitmove()
883 		|| check_for_opt_dict_arg(argvars, 2) == FAIL))  in f_win_splitmove()
931     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_win_gettype()
991     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_winbufnr()
1019     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_winheight()
1040     if (in_vim9script() && check_for_opt_number_arg(argvars, 0) == FAIL)  in f_winlayout()
1073     if (in_vim9script() && check_for_opt_string_arg(argvars, 0) == FAIL)  in f_winnr()
1121     if (in_vim9script() && check_for_dict_arg(argvars, 0) == FAIL)  in f_winrestview()
1175     if (rettv_dict_alloc(rettv) == FAIL)  in f_winsaveview()
1201     if (in_vim9script() && check_for_number_arg(argvars, 0) == FAIL)  in f_winwidth()
1261 	return FAIL;  in switch_win_noblock()