Formatter does not indent properly when case is combined with a variable

[BigBoyBarney]

Hi!

Similar to #15421, combining with case does not indent properly either.

@[Flags]
enum Snorlax
  One
  Two
end

def test
  one = Snorlax::One

  one | case
  when true
    Snorlax::Two
  else
    Snorlax::Two
  end
end

p! test

instead of

def test
  one = Snorlax::One

  one | case
        when true
          Snorlax::Two
        else
          Snorlax::Two
        end
end

Thanks!