The GitHub Actions job "CI" on tvm-ffi.git/rc-abi has failed.
Run started by GitHub user tqchen (triggered by tqchen).

Head commit for run:
64b45b538ceaa02262b2f470f63660df46b8873b / tqchen <[email protected]>
[FFI][ABI] TVMFFIObject ABI to further align with torch intrusive_ptr

This PR updates the TVMFFIObject ABI to use strong_ref_count/weak_ref_count
into u32 and which can be packed into the first u64 field in the object header.

This change will open up further optimizations that combines weak/strong into
a single u64 atomic that skips the need of extra atomic reading of weak value
during deletion. The technique was recently in torch and likely can offer 
speedup

We also reordered the counter to be first since most rc ops are frequent and
it would be more cache friendly. We do give up the same type_index first 
location
with TVMFFIAny, which is OK as they optimize for different goals.

Report URL: https://github.com/apache/tvm-ffi/actions/runs/18023724162

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