closes#4646closes#4645
Impact assessment by core usage search and poggit suggests that the impact of this change will be close to zero.
However, since it changes behaviour which plugins might be unknowingly relying on, it's going into 4.1 rather than a patch release.
I've stuck to only doing this in the places where I'm sure we should never get false back. Other places I'm less sure of (and I found more bugs along the way).
when a block has sole ownership of an ID, the state bitmask can be ignored and we can just claim the whole metadata range for that single block.
This fixes a large number of issues with unknown blocks on older worlds where world editors did not remove the metadata, although update blocks will currently still appear on initial chunk send due to lack of AOT conversion (TODO).
when using dynamic reflection (which is the default), any time static reflection comes into play, bad shit starts to happen because of FileReadTrapStreamWrapper.
I attempted to fix these issues (phpstan/phpstan-src#801) and failed miserably.
So, to save the hassle, it's time to just remove OPcache from the picture (which, unfortunately, also means that PHPStan will not benefit from JIT).
this is not as good as phpstan/phpstan-src#769 (e.g. array_key_first()/array_key_last() aren't covered by this, nor is array_rand()) but it does eliminate the most infuriating cases where this usually crops up.
it doesn't serve any practical purpose to keep these separated, particularly since it's getting so difficult to figure out which errors are coming from which levels (since we always use 9, it doesn't really make any difference).
