Filter: Fix return on top-level

    uint retpos = fstk->vcnt;

    /* Drop every sub-block including ourselves */

    while ((fstk->ecnt-- > 0) && !(fstk->estk[fstk->ecnt].emask & FE_RETURN))

      ;

    do fstk->ecnt--;

    while ((fstk->ecnt > 0) && !(fstk->estk[fstk->ecnt].emask & FE_RETURN));

    /* Now we are at the caller frame; if no such, try to convert to accept/reject. */

    if (!fstk->ecnt)

    {

      if (fstk->vstk[retpos].type == T_BOOL)

	if (fstk->vstk[retpos].val.i)

	  return F_ACCEPT;

	else

	  return F_REJECT;

	return (fstk->vstk[retpos].val.i) ? F_ACCEPT :  F_REJECT;

      else

	runtime("Can't return non-bool from non-function");

    }

    /* Set the value stack position, overwriting the former implicit void */

    fstk->vcnt = fstk->estk[fstk->ecnt].ventry - 1;