Undo the following revisions:

r3839
  r3825
  r3823
  r3821
  r3820 (undo only the changes in drscheme/private/debug.ss)
  r3792
  r3791

They will be re-done after v352 is released

svn: r3843

original commit: 5099b078c6bc07d83e0b11d486e342905a87ede4

collects/tests/mzscheme/contract-test.ss

@@ -4243,7 +4243,7 @@
   ;; (at the end, becuase they are slow w/out .zo files)
   ;;
   
-  (test/spec-passed
+    (test/spec-passed
    'provide/contract1
    '(let ()
       (eval '(module contract-test-suite1 mzscheme
@@ -4417,19 +4417,6 @@
                             [s-a 3])))
       (eval '(require n))))
   
-  (test/spec-passed
-   'provide/contract11
-   '(parameterize ([current-namespace (make-namespace)])
-      (eval '(module m mzscheme
-               (require (lib "contract.ss"))
-               (define x 1)
-               (provide/contract [rename x y integer?]
-                                 [rename x z integer?])))
-      (eval '(module n mzscheme
-               (require m)
-               (+ y z)))
-      (eval '(require n))))
-  
   ;; this test is broken, not sure why
   #|
   (test/spec-failed