Support tracing native functional collective via python APIs (#119103)
Summary:
- Inlined `torch.distributed.distributed_c10d._get_group_size_by_name`
- Updated all torch.compile tests in test_c10d_functional_native.py to use funcol python APIs (as opposed to the dispatcher ops)
Pull Request resolved: https://github.com/pytorch/pytorch/pull/119103
Approved by: https://github.com/wconstab, https://github.com/fegin, https://github.com/wanchaol
