commit https://github.com/vim/vim/commit/0e5d3a2940ead6c8ee3bacacea4153b647b67cca Author: Bram Moolenaar <Bram@vim.org> Date: Thu Aug 11 22:52:42 2016 +0200 patch 7.4.2198 Problem: Test alot sometimes fails under valgrind. (Dominique Pelle) Solution: Avoid passing a callback with the wrong number of arguments.

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}\")