anchor.diff:              freeList.Add index |> ignore<bool>
           else freeIndex <- dec freeIndex
           
  -    override this.UnregisterComponent _ _ = false
  +    override this.UnregisterComponent _ = false
   
       type 'w Ecs with
   
  
positive.code: /// performance.
  and 'w Ecs () as this =
  
      let mutable systemCached = { new System<'w> (typeof<unit>.Name) with member this.UnregisterComponent _ _ = false }
      let systemGlobal = systemCached
      let arrayObjss = dictPlus<string, ArrayObjs> StringComparer.Ordinal []
      let systemSubscriptions = dictPlus<string, Dictionary<Guid, obj>> StringComparer.Ordinal []
  
negative.code:         // fin
          unregistered
  
      override this.UnregisterComponent entityId =
          systemTree |>
          ListTree.findAll (fun system -> system.Name = string entityId) |>
          Seq.map (fun system -> system.UnregisterCorrelated entityId) |>
          Seq.exists id
  
      type 'w Ecs with
  
  