Fix slab prefetch address on Pop fast path. - #715
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The result is at current - 1, the pointer to the next object is at current -2 (where the PrefetchNextObject targets), and the slab address to prefetch is at current - 3. PiperOrigin-RevId: 978603438
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Fix slab prefetch address on Pop fast path.
The result is at current - 1, the pointer to the next object is at current -2 (where the PrefetchNextObject targets), and the slab address to prefetch is at current - 3.