pytorch

ca52f63f - [torchgen] Move Executorch unboxing logic into torchgen (#90098)

[torchgen] Move Executorch unboxing logic into torchgen (#90098) This PR adds `unboxing.py` which converts a `EValue` (similar to `IValue`) to its corresponding C++ type, based on the `ExecutorchCppSignature`. Added unit tests to it in `test_executorch_unboxing.py`. Notice that this unboxing logic should work for both ATen types and Executorch types, hence the unit tests are parametrized. Pull Request resolved: https://github.com/pytorch/pytorch/pull/90098 Approved by: https://github.com/ezyang