[Operator Versioning][Edge] Add old models and unittest (#67726)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67726
1. Check in one model with aten:div_tensor old op with unittest in both cpp and python. The following two lines are commented out and expected to work after using upgrader.
```
_helper(mobile_module_v2, div_tensor_0_3)
_helper(current_mobile_module, torch.div)
```
2. Update the commented code accordingly.
Currently there are 6 upgraders. The following old models with operators are added to cover these 6 upgraders:
```
// Tensor x Tensor
test_versioned_div_tensor_v3
// Tensor x Scalar
test_versioned_div_scalar_float_v3
test_versioned_div_scalar_reciprocal_int_v3
test_versioned_div_scalar_inplace_float_v3
// Scalar x Scalar
test_versioned_div_scalar_scalar_v3
// Tensor x Tensor with out kwarg
test_versioned_div_tensor_out_v3
// Tensor x Tensor inplace
test_versioned_div_tensor_inplace_v3
// Tensor x Scalar inplace
test_versioned_div_scalar_inplace_int_v3
```
Note:
In this pr, per model, it includes the following test:
1. Model (with old op) load/run test will be in both cpp and python
2. Model (with old op) + upgrader test will be in python
Other tests considered adding:
1. per upgrader bytecode test
2. app level integration test
ghstack-source-id: 144422418
Test Plan: CI and the added unittest
Reviewed By: iseeyuan
Differential Revision: D32069653
fbshipit-source-id: 96d9567088a1f709bc7795f78beed7a308e71ca9
