Further improve symbolic shapes logging (#99159)
* Introduce a frame counter which lets us uniquely identify frames.
This makes it easier to tell if you are recompiling the same frame
* Shorten evaluate_expr to eval for more visual distinctiveness
Signed-off-by: Edward Z. Yang <ezyang@meta.com>
Pull Request resolved: https://github.com/pytorch/pytorch/pull/99159
Approved by: https://github.com/Skylion007
