anchor.diff:     to the list *log-with-value* and then evalues the body normally"
     `(let ((logform nil)
            (retval ,form))
  -
  -     ;; YOUR MACRO COMPLETION CODE GOES HERE.
  -
  +     (push (list :form ',form :value retval) *log-with-value*)
        retval))
   
   
  
positive.code:    (repeat-2 (do-something arg1 arg2)))
  
    (assert-expands
     ____
     (repeat-2 (setf x (+ 1 x)))))
  
  
  
negative.code:       (assert-equal '(the axis are (x y z)) `(the axis are ,axis))
        (assert-equal '(the axis are x y z) `(the axis are ,@axis)))
      (let ((coordinates '((43.15 77.6) (42.36 71.06))))
        (assert-equal '(the coordinates are ((43.15 77.6) (42.36 71.06)))
          `(the coordinates are ,coordinates))
        (assert-equal '(the coordinates are (43.15 77.6) (42.36 71.06))
          `(the coordinates are ,@coordinates))))
  
  
  