Update test that now the error is raised earlier.

theano/tensor/tests/test_basic.py

@@ -5700,7 +5700,7 @@ class T_get_scalar_constant_value(unittest.TestCase):
         # For now get_scalar_constant_value goes through only MakeVector and Join of
         # scalars.
         v = tensor.ivector()
-        a = tensor.stack(v, 2, 3)
+        a = tensor.stack(v, [2], [3])
         self.assertRaises(tensor.NotScalarConstantError, get_scalar_constant_value, a[0])
         self.assertRaises(tensor.NotScalarConstantError, get_scalar_constant_value, a[1])
         self.assertRaises(tensor.NotScalarConstantError, get_scalar_constant_value, a[2])