commit https://github.com/vim/vim/commit/4c7bb12c82914307e6bbb73d95cfb3ba7189813a Author: Bram Moolenaar <Bram@vim.org> Date: Tue Dec 29 20:32:23 2015 +0100 patch 7.4.997 Problem: "make shadow" was sometimes broken. Solution: Add a test for it. (James McCoy, closes https://github.com/vim/vim/issues/520)

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}\")