Check that $laravel is an instance of the correct class
Check that $laravel is an instance of the correct class

This fixes a problem that happens with PHP 7.1 when xdebug is enabled:
phpunit evaluates $laravel as an instance of
Illuminate\Container\Container instead of
\Illuminate\Foundation\Application so it doesn’t find the constant
VERSION nor the method version(), and throws a fatal error.

kodeine/laravel-acl,SlonCorp/laravel-acl