Improvements 🔧

• Detect more unused function calls (generate functionMetadata.php from PhpStorm stubs' #[Pure] attribute) (phpstan/phpstan-src@2817690)

Bugfixes 🐛

• Scope - any variable after extract() call might exist (phpstan/phpstan-src@d3e7b9c), #3990
• Fix false positive with isset() and empty() (phpstan/phpstan-src@05942ca), #3991
• Fixed assert() bug (phpstan/phpstan-src@ca044c4), #3994
• array_shift() should invalidate remembered count() call (phpstan/phpstan-src@26d29ec), #3993
• Do not complain about non-covariant return type in count() method in implementations of Countable interface (MethodSignatureRule - read PHPDoc types instead of combined types) (phpstan/phpstan-src@fb8d3ef), #3997
• Fix literal array with empty item outside of left-side assign (phpstan/phpstan-src@a97477b), #4000