Re-land*4 "SymIntify cat and narrow" (#86468)
This re-lands https://github.com/pytorch/pytorch/pull/86289 but with more wrappers.
Contains implicit inclusion of <ATen/native/NonSymbolicBC.h> in internal usage.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/86468
Approved by: https://github.com/albanD
