commit https://github.com/vim/vim/commit/35a4cfa200917dd171b1fff3cd5b6cee9add673d Author: Bram Moolenaar <Bram@vim.org> Date: Sun Aug 14 16:07:48 2016 +0200 patch 7.4.2209 Problem: Cannot map <M-">. (Stephen Riehm) Solution: Solve the memory access problem in another way. (Dominique Pelle) Allow for using <M-\"> in a string.

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}\")