commit https://github.com/vim/vim/commit/361c8f0e517e41f1f1d34dae328044406fde80ac Author: Bram Moolenaar <Bram@vim.org> Date: Sat Jul 2 15:41:47 2016 +0200 patch 7.4.1980 Problem: 'errorformat' is parsed for every call to ":caddexpr". Can't add to two location lists asynchronously. Solution: Keep the previously parsed data when appropriate. (mostly by Yegappan Lakshmanan)

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}\")