Make tests name print such that we can rerun them easily.

theano/sparse/tests/test_basic.py

@@ -2070,6 +2070,7 @@ def _hv_switch(op, expected_function):
 
         def expected_f(self, a, format=None, dtype=None):
             return expected_function(a, format, dtype)
+    XStackTester.__name__ = op.__name__ + "Tester"
     return XStackTester
 
 HStackTester = _hv_switch(HStack, sp.hstack)