fixed the tests with new args

bin/pre.slime

@@ -36,7 +36,6 @@ condition is false."
 
 (define-syntax (let bindings . body)
   (define (unzip lists)
-    (break)
     (when lists
       (define (iter lists l1 l2)
         (define elem (first lists))
@@ -45,7 +44,6 @@ condition is false."
                   (pair (first elem) l1)
                   (pair (first (rest elem)) l2))
           (list l1 l2))))
-
     (iter lists () ()))
 
   (define unzipped (unzip bindings))
@@ -152,7 +150,7 @@ ithe sequence as arguemens."
                                      (concat-strings module-prefix
                                                      (symbol->string orig-export-name)))))
                    `(define ,export-name
-                      ,(try (eval orig-export-name)
+                      ,(mytry (eval orig-export-name)
                             (error "The module does not contain" orig-export-name)))))
                exports))))