ormolu-0.8.1.1: data/examples/declaration/class/super-classes-out.hs

class Foo a

class (Foo a) => Bar a

class
  (Foo a, Bar a) =>
  Baz a

class
  ( Foo a, -- Foo?
    Bar a, -- Bar?
    Baz a -- Baz
  ) =>
  BarBar a