- Support narrowing types via in_array() for enum cases
- Fix checking of generic attributes
brew bump-formula-pr --url=https://github.com/phpstan/phpstan/releases/download/1.6.8/phpstan.phar --sha256=ae1544f77f9e854f03e5a9a0e952aea28f1ba8df32358631d43bb6871cad1344 phpstan
