patch 8.2.3237: when a builtin function gives an error processing continues Commit: https://github.com/vim/vim/commit/327d3ee4557027b51aad86e68743a85ed3a6f52b Author: Bram Moolenaar <Bram@vim.org> Date: Wed Jul 28 19:34:14 2021 +0200 patch 8.2.3237: when a builtin function gives an error processing continues Problem: When a builtin function gives an error processing continues. Solution: In Vim9 script return FAIL in get_func_tv().

TYPEMAP
VIWIN	T_VIOBJNOMUNGE
VIBUF	T_VIOBJNOMUNGE

INPUT
T_VIOBJNOMUNGE
	if (sv_isa($arg, \"${ntype}\")) {
	    IV tmp = SvIV((SV*)SvRV($arg));
	    $var = INT2PTR($type, tmp);
	    if (!tmp)
		croak(\"$ntype no longer exists\");
	}
	else
	    croak(\"$var is not of type ${ntype}\")