disable part of a test in debug mode that is test something debug don't need to conform.

theano/compile/tests/test_pfunc.py

@@ -639,6 +639,8 @@ class Test_aliasing_rules(unittest.TestCase):
         assert not numpy.may_share_memory(data_of(A), data_of(B))
 
         # theano should have been smart enough to not make copies
+        if theano.config.mode not in ['DebugMode', 'DEBUG_MODE']:
+            #we don't ask DebugMode to don't make copy. We have the right to do so.
             assert numpy.all(data_of(A) < 5)
             data_of_b += 10
             assert numpy.all(data_of(A) > 5)