Jake Burns must surely hold the record for longest gestation period for a song in modern rock history. Back in 1983 when Stiff Little Fingers broke up, Burns met up with another singer from an Irish band who was in the same situation and they lamented their respective losses over a pint, or many. Burns went home and wrote the lyrics to ‘When We Were Young’, but it took him another thirty-five years to get around to the music. Phil Lynott was the man he shared his commiserations with back in that long-ago boozer, Burns tells the crowd in The…