POC added elementwise tester for uint to AddTest

theano/tensor/tests/test_basic.py

@@ -697,6 +697,9 @@ AddTester = makeBroadcastTester(
         three_inputs_same_shapes=(rand(2, 3),
                                   rand(2, 3),
                                   rand(2, 3)),
+        three_inputs_same_shapes_uint = (numpy.random.randint(5, size=(2,3)),
+                                         numpy.random.randint(5, size=(2,3)),
+                                         numpy.random.randint(5, size=(2,3))),
         four_inputs_broadcast=(rand(2, 3),
                                rand(1, 3),
                                rand(2, 1),