For all the R-rated antics of the slasher films of the 1970s and ’80s, there was a certain puritanical impulse driving the slaughter of horny hetero teens and the survival of the more sexually-disciplined, even as queer and feminist viewers have embraced these films for their less obvious subversions and revelations, like the repressed homosexuality driving the bad dreams in Freddy’s Revenge, the second installment in A Nightmare on Elm Street (Wes Craven, director of the first film