anchor.diff:                      expr
       #endif
   
  -            transExpr expr
  +            simplifyExpr expr
   
       //--------------------------------------------------------------------------------
       // ProvidedMethod, ProvidedConstructor, ProvidedTypeDefinition and other provided objects
  
positive.code:                 | None -> null
                  | Some md -> gtd.MakePropertyInfo (this, md) 
  
              | _ -> notRequired this "ContextTypeSymbol: GetPropertyImpl" this.Name
  
          override this.GetEvent(name, _bindingAttr) = 
              match kind with
  
negative.code:         member this.Kind = kind
          member this.Args = typeArgs
  
  
          override this.GetMethodImpl(name, _bindingAttr, _binderBinder, _callConvention, types, _modifiers) =
              match kind with
  