Remove the "int" dtype for the sparse package as we need to be sure of the size of the dtype.

theano/sparse/basic.py

@@ -365,7 +365,7 @@ class SparseType(gof.Type):
     """
     format_cls = {'csr': scipy.sparse.csr_matrix,
                   'csc': scipy.sparse.csc_matrix}
-    dtype_set = set(['int', 'int8', 'int16', 'int32', 'int64', 'float32',
+    dtype_set = set(['int8', 'int16', 'int32', 'int64', 'float32',
                      'float64', 'complex64', 'complex128'])
     ndim = 2