Object:
  superclasses:
  interfaces:
  classMembers:
    Object._haveSameRuntimeType
    Object.toString
    Object.runtimeType
    Object._toString
    Object._simpleInstanceOf
    Object._hashCodeRnd
    Object._instanceOf
    Object.noSuchMethod
    Object._objectHashCode
    Object._identityHashCode
    Object.hashCode
    Object._simpleInstanceOfFalse
    Object._simpleInstanceOfTrue
    Object.==
  classSetters:

X:
  superclasses:
    Object
  interfaces:
  classMembers:
    X.y
    X.toString
    X.x
    Object.runtimeType
    Object._simpleInstanceOf
    Object._instanceOf
    Object.noSuchMethod
    Object._identityHashCode
    Object.hashCode
    Object._simpleInstanceOfFalse
    Object._simpleInstanceOfTrue
    Object.==
  classSetters:

Y:
  superclasses:
    Object
  interfaces:
  classMembers:
    Y.f
    Object.toString
    Object.runtimeType
    Object._simpleInstanceOf
    Object._instanceOf
    Object.noSuchMethod
    Object._identityHashCode
    Object.hashCode
    Object._simpleInstanceOfFalse
    Object._simpleInstanceOfTrue
    Object.==
  classSetters: