Barry Blaustein, the former Saturday Night Live writer whose decades-long collaboration with Eddie Murphy included Buckwheat, Gumby and Mr. Robinson sketches and the Coming to America and Nutty Professor films, died Tuesday. He was 72. Blaustein’s death was announced by Chapman University’s Dodge College of Film and Media Arts, where he was a longtime professor. After a rigorous battle with Parkinson’s disease — he was diagnosed in mid-2017 — he was told last month that he had stage four pancreatic cancer. “It was one of the great pleasures of my life to know Barry,” former THR editor and writer Stephen Galloway, now dean of Dodge College, said in a statement. “He faced his declining health with a level of stoicism I’ve never seen and kept his warmth and humor throughout. Even when he could no longer drive, he kept on teaching. It’s a sign of how beloved he was that a group of faculty created a shuttle service to take him back and forth to Chapman. He’s irreplaceable.…