[torch.compile] Passing only necessary compilation config to inductor pass config

[luccafong]

Summary: we should not pass the weakref to compilation_config, which include static_forward_context that will holds the pointers to the model layers (e.g. moe, attention), which is dangerous, as this will be passed as config to torch.compile

Differential Revision: D84790018

pytest -v test_sequence_parallelism.py 
pytest -vvv test_async_tp.py
 pytest -vvv test_config.py -k "test_copy_pass"

[gemini-code-assist]

Code Review

This pull request refactors how compilation configuration is passed to the VllmInductorPass. Instead of passing a weak reference to the entire CompilationConfig, it now passes a new SimplifiedCompilationConfig object containing only the necessary fields. This is a great improvement for safety and decoupling, as it avoids passing potentially dangerous pointers (like static_forward_context) into the torch.compile process. However, I've identified a critical type mismatch in the new SimplifiedCompilationConfig dataclass that needs to be addressed.

[houseroad]

later pass_config can be also moved.

[luccafong]

I think we can utilize it, but it will introduce duplicated attribute in config level, we can think of how to organize these config better in following PR. @zou3519

[houseroad]

Looks good to me