added a name to Reshape op to help debugging.

theano/tensor/basic.py

@@ -2054,8 +2054,10 @@ class Reshape(Op):
     The number of dimensions to which to reshape to (ndim) must be known at graph 
     build time."""
     view_map = {0: [0]} #output 0 is potentially aliased to inputs [0]
-    def __init__(self, ndim):
+    def __init__(self, ndim, name = None):
         self.ndim = ndim
+        if name:
+            self.name = name
     def __eq__(self, other):
         return (type(other) is Reshape) and (other.ndim == self.ndim)
     def __hash__(self):
@@ -2075,10 +2077,10 @@ class Reshape(Op):
     def grad(self, (x, shp), (g_out,)):
         return [reshape(g_out, shape(x), ndim=x.ndim), None]
 
-def reshape(x, newshape, ndim=None):
+def reshape(x, newshape, ndim=None, name=None):
     if ndim is None:
         ndim = get_vector_length(newshape)
-    op = Reshape(ndim)
+    op = Reshape(ndim, name)
     return op(x, newshape)