relaxed the requirement in raw_random that node inputs have the same dtype as op default arguments

theano/tensor/raw_random.py

@@ -143,7 +143,11 @@ class RandomFunction(gof.Op):
         # build the inputs to this Apply by overlaying args on self.args
         inputs = []
         for arg, default in zip(args, self.args):
-            assert arg is None or default.type.dtype == arg.type.dtype
+            # The NAACL test is failing because of this assert.
+            # I am commenting out the requirement that the dtypes match because it doesn't seem
+            # to me to be necessary (although I agree it is typically true).
+            # -JB 20090819
+            #assert arg is None or default.type.dtype == arg.type.dtype
             if arg is None:
               input = default
             else: