[torch_int_div] Correct true division in generation
Author: patrickvonplaten
Pull request: yes

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Fixes https://github.com/huggingface/transformers/issues/14208#issuecomment-1028464415

Due to circular importants I've moved the function `torch_int_div` to a new file. Think this also makes sense as it's arguable not only restricted to models in PyTorch but general functionality in PyTorch.


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Comments:
_The documentation is not available anymore as the PR was closed or merged._

> * apply_chunking_to_forward

I'l leave that for a future PR - don't find the time to add this here currently sadly.