[VOTE] Opcache optimization without any caching

Hi Marco,

The naming is extremely wonky: allow_cache to allow_optimization? ?
Nonetheless, this is extremely valuable for widely used binaries and
long running processes, so ?

I'm not fully clear on what you mean for opcache.allow_optimization to do

• you'd have to combine it with changes to other settings
  (e.g. allow it to override opcache.enable=0 to optimize but not cache if
  the opcache extension is loaded).
  The setting opcache.optimization_level is already available to enable or
  disable optimizations.
  The separate setting in https://wiki.php.net/rfc/opcache.no_cache to
  enable or disable caching seemed like the easiest to understand for me.

With opcache.enable=1, opcache.enable_cli=1 (if CLI), and
opcache.allow_cache=0, optimizations are enabled, but caching is disabled

Thanks, makes much more sense.