[JIT] namedtuple constants (#32873)
Summary:
If there was a namedtuple with immutable constant inputs, that was also the input / output of a function which expected a namedtuple it would fail. Fix by using namedtuple constructor on serialization. (no one has run into this bug yet).
Pull Request resolved: https://github.com/pytorch/pytorch/pull/32873
Differential Revision: D19668807
Pulled By: eellison
fbshipit-source-id: bae33506e53b6a979b4e65a3e7c989b1408c98f4
