Removed make_node method and corrected the test

theano/compile/ops.py

@@ -517,17 +517,7 @@ class FromFunctionOp(gof.Op):
 
     def __str__(self):
         return 'FromFunctionOp{%s}' % self.__fn.__name__
-
-    def make_node(self, *inputs):
-        if len(inputs) != len(self.itypes):
-            raise ValueError("We expected %d inputs but got %d." %
-                             (len(self.itypes), len(inputs)))
-        if not all(inp.type == it for inp, it in zip(inputs, self.itypes)):
-            raise TypeError(
-                "We expected inputs of types '%s' but got types '%s' " %
-                (str([inp.type for inp in inputs]), str(self.itypes)))
-        return theano.Apply(self, inputs, [o() for o in self.otypes])
-
+        
     def perform(self, node, inputs, outputs):
         outs = self.__fn(*inputs)
         if not isinstance(outs, (list, tuple)):

theano/gof/tests/test_op.py

@@ -248,7 +248,7 @@ class TestMakeThunk(unittest.TestCase):
                 output = outputs[0]
                 output[0] = inp * 2
 
-        x_input = T.matrix('x_input')
+        x_input = T.dmatrix('x_input')
         f = theano.function([x_input], DoubleOp()(x_input))
         inp = numpy.random.rand(5, 4)
         out = f(inp)