use more direct fct call.

theano/compile/function_module.py

@@ -584,7 +584,7 @@ class Function(object):
                 # done by raise_with_op is not implemented in C.
                 if hasattr(self.fn, 'thunks'):
                     # For the CVM
-                    gof.vm.raise_with_op(
+                    gof.link.raise_with_op(
                         self.fn.nodes[self.fn.position_of_error],
                         self.fn.thunks[self.fn.position_of_error])
                 else:

theano/tensor/opt.py

@@ -1427,6 +1427,8 @@ class Assert(T.Op):
             self.msg = "Theano Assert failed!"
 
     def make_node(self, value, *conds):
+        if not isinstance(value, Variable):
+            value = T.as_tensor_variable(value)
         cond = [T.as_tensor_variable(c) for c in conds]
         assert numpy.all([c.type.ndim == 0 for c in cond])
         return gof.Apply(self, [value] + cond, [value.type()])