perf(core.js): introduce promise ring (#9979)

This is another optimization to help improve the baseline overhead 
of async ops. It shaves off ~55ns/op or ~7% of the current total 
async op overhead.

It achieves these gains by taking advantage of the sequential 
nature of promise IDs and optimistically stores them sequentially 
in a pre-allocated circular buffer and fallbacks to the promise Map 
for slow to resolve promises.

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