This article first appeared in Radio Times magazine.So an Englishman, an Irishman and an American go off to meet the Pope. At first it sounds like a joke – especially since I’m being told the story by a comedian. Then it sounds more like a surreal dream – especially when the Englishman turns out to be Stephen Merchant, and the American Whoopi Goldberg.But no, it’s an honest-to-God account, from stand-up (and actor and writer) Ardal O’Hanlon, of …