unwrap sizevars passed as args (#96051)
Undoes int arg wrapping that dynamo does
Generated line:
```
s1 = arg2_1.item() if isinstance(arg2_1, torch.Tensor) else arg2_1
```
Fixes #ISSUE_NUMBER
Pull Request resolved: https://github.com/pytorch/pytorch/pull/96051
Approved by: https://github.com/ezyang, https://github.com/jansel
