issue33217 is tracking member-containment checks; modifying this one to track class-containment checks.

Given

  class Color(Enum):
     RED = 1

  class Fruit(Enum):
     APPLE = 1

then

  --> Fruit.APPLE in Color
  False
  --> Fruit.APPLE in Fruit
  True
  --> 1 in Fruit
  TypeError

The last is currently returning False instead of raising a TypeError.