fix python

Author: chelini

mlir/test/python/pass_manager.py

@@ -130,7 +130,7 @@ def testInvalidNesting():
         try:
             pm = PassManager.parse("func.func(normalize-memrefs)")
         except ValueError as e:
-            # CHECK: ValueError exception: Can't add pass 'NormalizeMemRefs' restricted to 'builtin.module' on a PassManager intended to run on 'func.func', did you intend to nest?
+            # CHECK: ValueError exception: Can't add pass 'NormalizeMemRefsPass' restricted to 'builtin.module' on a PassManager intended to run on 'func.func', did you intend to nest?
             log("ValueError exception:", e)
         else:
             log("Exception not produced")