patch 8.2.1461: Vim9: string indexes are counted in bytes Commit: https://github.com/vim/vim/commit/e3c37d8ebf9dbbf210fde4a5fb28eb1f2a492a34 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Aug 15 18:39:05 2020 +0200 patch 8.2.1461: Vim9: string indexes are counted in bytes Problem: Vim9: string indexes are counted in bytes. Solution: Use character indexes. (closes https://github.com/vim/vim/issues/6574)

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}\")