pytorch

bc026c05 - [jit] Split Union type and Optional type to separate impl file. (#69483)

[jit] Split Union type and Optional type to separate impl file. (#69483) Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/69483 To avoid accidental linking to Union type and Optional type in Edge runtimes, we can separate these types into different files, so that we don't accidentally link with them in type.cpp. ghstack-source-id: 146670525 Test Plan: just code move. Reviewed By: ejguan Differential Revision: D32264607 fbshipit-source-id: c60b6246f21f3eb0a67f827a9782f70ce5200da7