[JIT] Allow unpacking tuple and assign their values to SELECT-type expressions (#55268)
Summary:
Fixes https://github.com/pytorch/pytorch/issues/51176
Pull Request resolved: https://github.com/pytorch/pytorch/pull/55268
Reviewed By: pbelevich, izdeby
Differential Revision: D27551950
Pulled By: gmagogsfm
fbshipit-source-id: 35324b728649bb1e6c5410a1004d2f6964f98304
