VXTRACE
VXTRACE(DBG_EVAL, ("Shell function%s: ",vforking?" VF":""),
VXTRACE(DBG_EVAL, ("builtin command [%d]%s: ", argc,
VXTRACE(DBG_EVAL, ("normal command%s: ", vforking?" VF":""),
VXTRACE(DBG_EVAL, (" "), showtree(n->nbinary.ch1));
VXTRACE(DBG_EVAL, ("evalloop do: "), showtree(n->nbinary.ch2));
VXTRACE(DBG_PARSE|DBG_EVAL|DBG_CMDS,("cmdloop: "),showtree(n));