commit https://github.com/vim/vim/commit/fb1f62691eae7c79a28b3b17a60e72ce198c71a2 Author: Bram Moolenaar <Bram@vim.org> Date: Sun Jan 31 20:24:32 2016 +0100 patch 7.4.1229 Problem: "eval" and "expr" channel commands don't work yet. Solution: Implement them. Update the error numbers. Also add "redraw".

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}\")