Make meta_conv try more case due to broadcasting problems

theano/gof/opt.py

@@ -857,7 +857,9 @@ class LocalMetaOptimizer(LocalOptimizer):
             elif hasattr(input.tag, 'test_value'):
                 givens[input] = theano.shared(
                     input.type.filter(input.tag.test_value),
-                        input.name, borrow=True)
+                    input.name,
+                    broadcastable=input.broadcastable,
+                    borrow=True)
             else:
                 missing.add(input)
         if missing:

theano/sandbox/cuda/opt.py

@@ -1413,7 +1413,9 @@ class ConvMetaOptimizer(LocalCudaMetaOptimizer):
 #                                        allow_downcast=True),
                     numpy.require(numpy.random.randn(*shape),
                                   dtype=var.dtype),
-                        var.name, borrow=True)
+                    var.name,
+                    broadcastable=var.broadcastable,
+                    borrow=True)
         # return mapping
         return result