[vmap] symintify alias and squeeze (#107577)
Following tests now pass (both ops call into `alias` on certain paths)
```
PYTORCH_TEST_WITH_DYNAMO=1 pytest test/functorch/test_vmap.py -k test_squeeze -v
PYTORCH_TEST_WITH_DYNAMO=1 pytest test/functorch/test_vmap.py -k test_conj -v
```
NOTE: Ideally, this symint version should work with non symint version as well but that would mean changes at multiple places. Wanted to get a review for this fix before-hand.
Other sites which use the `IntArrayRef` overload.
https://github.com/pytorch/pytorch/blob/5f56c4fb32dbb5dd4e75a3a3a9726ae95931926d/aten/src/ATen/native/TensorShape.cpp#L1707-L1713
`view_impl` is called from `view` and `_unsafe_view`.
https://github.com/pytorch/pytorch/blob/5f56c4fb32dbb5dd4e75a3a3a9726ae95931926d/aten/src/ATen/native/TensorShape.cpp#L3295-L3306
Pull Request resolved: https://github.com/pytorch/pytorch/pull/107577
Approved by: https://github.com/zou3519
