commit https://github.com/vim/vim/commit/517ffbee0d5b7b46320726faaa330b61f54e867c Author: Bram Moolenaar <Bram@vim.org> Date: Wed Apr 20 14:59:29 2016 +0200 patch 7.4.1755 Problem: When using getreg() on a non-existing register a NULL list is returned. (Bjorn Linse) Solution: Allocate an empty list. Add a test.

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}\")