Improvements 🔧

• Cache OptimizedDirectorySourceLocator data for faster subsequent runs and less work needed by child processes (https://github.com/phpstan/phpstan-src/commit/b66210f114f695a23d62f884615874cf5f7c6bab)
• NonAcceptingNeverType (#2540), #9133, #6485, thanks @jiripudil!
• ClearResultCacheCommand - --xdebug option (https://github.com/phpstan/phpstan-src/commit/3befb53be3acb9c6807d1ac0834eafb399762440)

Internals 🔍

• Do not pass a fake path to analyse in ClearResultCacheCommand; check paths count later when asking for files (https://github.com/phpstan/phpstan-src/commit/4e37a2d78baed28974f140775bcc7f5cba62cf6b)
• FileCacheStorage - reference cache key in a comment (https://github.com/phpstan/phpstan-src/commit/0fbf0eed7ba63bdae6a8ce7ef33a96bd12236b45)