anchor.diff:  	   #:symbol-value
   	   #:boundp
   	   #:makunbound
  +	   #:constantp
   	   )
     (:export
      #:proclaim
  
positive.code:    #:boundp
     #:makunbound
     #:find-value-cell
     ))
  
  (defpackage #:sicl-ast
  
negative.code:    #:find-function
     #:macroexpand-1
     #:macroexpand
     #:fully-expand-form
     #:find-type
     #:find-ftype
     #:augment-environment
  