patch 8.2.1552: warnings from asan with clang-11 Commit: https://github.com/vim/vim/commit/64f37d309025a65210dbc33823ec9ec5d547775f Author: Bram Moolenaar <Bram@vim.org> Date: Mon Aug 31 19:58:13 2020 +0200 patch 8.2.1552: warnings from asan with clang-11 Problem: Warnings from asan with clang-11. (James McCoy) Solution: Avoid using a NULL pointer. (issue https://github.com/vim/vim/issues/6811)

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}\")