anchor.diff:  
   (defclass container (widget)
     ((border-width
  -    :allocation :arg
  +    :allocation :param
       :accessor container-border-width
       :initarg :border-width
       :type unsigned-long)
      (resize-mode
  -    :allocation :arg
  +    :allocation :param
       :accessor container-resize-mode
       :initarg :resize-mode
       :type resize-mode)
  
positive.code: 
  (defclass misc (widget)
    ((xalign
      :allocation :arg
      :accessor misc-xalign
      :initarg :xalign
      :type single-float)
     (yalign
      :allocation :arg
      :accessor misc-yalign
      :initarg :yalign
      :type single-float)
     (xpad
      :allocation :arg
      :accessor misc-xpad
      :initarg :xpad
      :type int)
     (ypad
      :allocation :arg
      :accessor misc-ypad
      :initarg :ypad
      :type int))
  
negative.code: 
  (defclass accel-label (label)
    ((widget
      :allocation :param
      :location "GtkAccelLabel::accel_widget"
      :accessor accel-label-accel-widget
      :initarg :accel-widget
  