anchor.diff:          IndexLookup: int []
           Entities: Entity UnsafeResizeArray
           Components: 'T UnsafeResizeArray
  -        Clone : 'T -> 'T
  +        Clone : obj -> obj
       }
   
       interface IEntityLookupData with
  
positive.code:                 None
  
          member this.CloneComponent comp =
              this.Clone (comp :?> 'T) :> Component
  
  type EntityBuilder = EntityBuilder of (Entity -> EntityManager -> unit)
  
  
negative.code: 
      abstract TryGetComponent : int -> Component option
  
      abstract CloneComponent : obj -> obj
  
  [<ReferenceEquality>]
  type EntityLookupData<'T when 'T :> Component> =
  