Even if you passed with your eyes shut, it would be impossible not to get hungry walking by this cozy corner Clarendon restaurant. All sorts of tantalizing scents waft out of chef-owner Scott Harlan’s philosophically focused restaurant — sizzled bacon, roasted ribs, rich gravy. Little is wasted at this snout-to-tail standard bearer. Get a taste with snack-sized starters like tacos filled with crispy pig ears, ox-heart Reubens or richer-than-Buffett poutine-style fries topped with chunks of duck liver and foie gras. Entrees veer a bit more mainstream, and include a bacon cheeseburger with the rashers ground right into the patty, and Cornish game hen plumped with cornbread stuffing.   Between bites, pause to appreciate the culinary-minded décor. Bookshelves brim with vintage and modernist cookbooks, shelves overflow with a rainbow of vintage Le Creuset, and a brass statuette of a pig seems to smile at passing diners. Whatever you do, save room for dessert, namely the spot-on butterscotch pudding, which is studded with candied pecans and cubes of chocolate brownie. It’s a sweet finish to Green Pig Bistro’s sensory excursion.