== evaluating lines
extract: AnyRef => Unit = <function1>
  evaluating x
x: Int = 0
getX: ()Int
defined class U
y: Int = <lazy>
  evaluating z
  evaluating zz
defined class D
z: Int = 0
zz: Int = 0
defined object O
defined class A
defined type alias AA
constructing U
u: U = U
== evaluating lambda
  evaluating y
  evaluating O
  constructing A
== reconstituting into a fresh classloader
== evaluating reconstituted lambda
  constructing A