Set names of output Variables from PickableSequentialChain

chainercv/links/model/pickable_sequential_chain.py

@@ -143,6 +143,7 @@ def __call__(self, x):
         h = x
         for name in self.layer_names[:last_index + 1]:
             h = self[name](h)
+            h.name = name
             if name in pick:
                 layers[name] = h
 

tests/links_tests/model_tests/test_pickable_sequential_chain.py

@@ -60,6 +60,7 @@ def check_call(self, x, expects):
         for out, layer_name in zip(outs, pick):
             self.assertIsInstance(out, chainer.Variable)
             self.assertIsInstance(out.array, self.link.xp.ndarray)
+            self.assertEqual(out.name, layer_name)
 
             out = to_cpu(out.array)
             np.testing.assert_equal(out, to_cpu(expects[layer_name].array))