Long before it was Garfield Diner, Welcome Diner, Roosevelt Diner, or even Lil Robert’s Diner, the retro-style eatery on the corner of Roosevelt and 10th streets was known by a different moniker — Hi-Way Diner. In its heyday, Hi-Way Diner dished out burgers, fries and shakes to sightseeing road trippers from its outpost along Route 66 in Williams…