Add private user tensor type IDs for experimentation. (#31830)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31830
Signed-off-by: Edward Z. Yang <ezyang@fb.com>
Test Plan: Imported from OSS
Differential Revision: D19330312
Pulled By: ezyang
fbshipit-source-id: fe2e53e732e946088e983ec45fed2393436f0517
