anchor.diff:  
           override this.GetRaiseMethod _nonPublic = notRequired this "GetRaiseMethod" eventName
           override this.ReflectedType = notRequired this "ReflectedType" eventName
  -        override __.GetCustomAttributes(_inherit) = Attributes<_>.Empty()
  +        override __.GetCustomAttributes(_inherit) = emptyAttributes
           override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
           override this.IsDefined(_attributeType, _inherit) = notRequired this "IsDefined" eventName
           override __.GetCustomAttributesData() = customAttributesImpl.GetCustomAttributesData()
  
positive.code:         override this.GetMethodImplementationFlags() = notRequired this "GetMethodImplementationFlags" methodName
          override this.Invoke(_obj, _invokeAttr, _binder, _parameters, _culture) = notRequired this "Invoke" methodName
          override this.ReflectedType = notRequired this "ReflectedType" methodName
          override __.GetCustomAttributes(_inherit) = Attributes<_>.Empty()
          override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
          override __.GetCustomAttributesData() = customAttributesImpl.GetCustomAttributesData()
  
  
negative.code:         override this.ReflectedType = notRequired this "ReflectedType" this.Name
          override this.GetMethodImplementationFlags() = notRequired this "GetMethodImplementationFlags" this.Name
          override this.MethodHandle = notRequired this "MethodHandle" this.Name
          override __.GetCustomAttributes(_inherit) = emptyAttributes
          override __.GetCustomAttributes(attributeType, _inherit) = Attributes.CreateEmpty attributeType
          override __.GetCustomAttributesData() = customAttributesImpl.GetCustomAttributesData()
  
  