Fix internal errors 

Merge pull request phpstan#45 from phpstan/commands Console commands

Merge pull request phpstan#44 from enumag/feature/messenger Add EnvelopeReturnTypeExtension for symfony/messenger

Fixed forward compatibility with PHPStan 0.11.3 

Merge pull request #33 from keichinger/updated-servicesubscriberinter… …face Honor new contracts namespace as-of Symfony 4.2 for ServiceSubscriberInterface

Fixed extension.neon 

Merge pull request #7 from phpstan/type-specifying-extensions Extensions for ContainerInterface|Controller::has()