Add ignored "allow_downcast" parameter to cuda shared constructors.

theano/sandbox/cuda/var.py

@@ -82,7 +82,8 @@ class CudaNdarraySharedVariable(SharedVariable, _operators):
 
 CudaNdarrayType.SharedVariable = CudaNdarraySharedVariable
 
-def cuda_shared_constructor(value, name=None, strict=False, borrow=False, broadcastable=None):
+def cuda_shared_constructor(value, name=None, strict=False,
+        allow_downcast=None, borrow=False, broadcastable=None):
     """SharedVariable Constructor for TensorType"""
 
     # THIS CONSTRUCTOR TRIES TO CAST VALUE TO A FLOAT32, WHICH THEN GOES ONTO THE CARD
@@ -112,7 +113,8 @@ def cuda_shared_constructor(value, name=None, strict=False, borrow=False, broadc
         raise
     return rval
 
-def float32_shared_constructor(value, name=None, strict=False, borrow=False, broadcastable=None):
+def float32_shared_constructor(value, name=None, strict=False,
+        allow_downcast=None, borrow=False, broadcastable=None):
     """SharedVariable Constructor for TensorType"""
 
     # if value isn't a float32 ndarray, then raise