hindent-4.3.10: test/fundamental/tests/6.test

a = case f x of
  1 -> 1
  2 -> 3
  3 -> 4
  _ -> 100

a = case f x of
    1 -> 1
    2 -> 3
    3 -> 4
    _ -> 100

a = case 
         f x of
    1 -> 1
    2 -> 3
    3 -> 4
    _ -> 100

a = case f x of
      Nothing -> 1
      Just x  -> 3

a = case f x of
      Nothing -> 1
      Just x -> 3

a = case f x of
      Nothing     -> 1
      Just x -> 3

a = case f x of
      Nothing -> do
        return 3
      Just x -> return ()

a = case f x of
      Nothing -> do
        return 3
      Just x -> do
        return 5