patch 8.2.0403: when 'buftype' is "nofile" there is no overwrite check Commit: https://github.com/vim/vim/commit/a3a9c8ef697bbf6f640cde99710b6f534f29f77d Author: Bram Moolenaar <Bram@vim.org> Date: Thu Mar 19 12:38:34 2020 +0100 patch 8.2.0403: when 'buftype' is "nofile" there is no overwrite check Problem: When 'buftype' is "nofile" there is no overwrite check. Solution: Also check for existing file when 'buftype' is set. (closes #5807)

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}\")