Make Transformers more torch-exportable and dynamo-friendly
Author: IlyasMoutawwakil
Pull request: yes

# What does this PR do?

First proposals include:
- `check_with(error_type, cond, lambda: msg)` instead of `if cond: raise error_type(msg)`, which also works with torch.export/torch.compile to hint to the compiler that the condition is expected to be true at export/compile time.
- vectorization of some loops / comprehension lists into traceable, optimized and non-blocking versions.


## Before submitting
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      Pull Request section?
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- [ ] Did you write any new necessary tests?


## Who can review?

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Comments:
The docs for this PR live [here](https://moon-ci-docs.huggingface.co/docs/transformers/pr_42317). All of your documentation changes will be reflected on that endpoint. The docs are available until 30 days after the last update.

taken from #41992 

LGTM, now just the flagged change that looks a bit weird (check the if else)

**[For maintainers]** Suggested jobs to run (before merge)

run-slow: aria, aya_vision, bart, bigbird_pegasus, biogpt, chameleon, cohere2_vision, colqwen2, ctrl, d_fine, dac, deepseek_vl, deepseek_vl_hybrid, deformable_detr, emu3, ernie4_5_vl_moe

View the CircleCI Test Summary for this PR:

https://huggingface.co/spaces/transformers-community/circle-ci-viz?pr=42317&sha=99be85