Description:
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Eval is very often used to execute some compiled scripts.

To speedup the processing, the usual approach is to save the script to FS to utilize opcache.

This is a feature request to process eval input thru opcache as if the input was from a file. This improves performance as saving one-shot only file to FS is completely unneeded. Input hash can be very easily used as a cache key.

To prevent pruning all file cache data, opcache size for eval should be limited to like 50%.