anchor.diff:          |> ignore
   
       FunctionNode
  -        |=> Implements [Node]
  +        |=> Inherits Node
           |+> Instance [
               Constructor ((Node + T<string>) * !| Node)
   
  
positive.code:         ]
  
      AccessorNode
          |=> Implements [Node]
          |+> Instance [
              Constructor (Node * IndexNode)
  
  
negative.code:         |> ignore
  
      AssignmentNode
          |=> Inherits Node
          |+> Instance [
              Constructor ((SymbolNode + AccessorNode) * IndexNode * Node)
              Constructor (SymbolNode * Node)
  