Handle ruby allocation failures gracefully#28145
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Prior to this change, the custom alloc function used with arenas would internally longjmp on allocation failure, which would then leak memory (as upb does not expect or permit longjmp from an alloc function, and has no way to free intermediate allocations). PiperOrigin-RevId: 903547833
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Handle ruby allocation failures gracefully
Prior to this change, the custom alloc function used with arenas would internally longjmp on allocation failure, which would then leak memory (as upb does not expect or permit longjmp from an alloc function, and has no way to free intermediate allocations).