PHPStan as a normal dependency

Author: lookyman

composer.json

@@ -11,11 +11,11 @@
     }
   ],
   "require": {
-    "php": "^7.1"
+    "php": "^7.1",
+    "phpstan/phpstan": "^0.9.2"
   },
   "require-dev": {
     "jakub-onderka/php-parallel-lint": "^0.9.2",
-    "phpstan/phpstan": "^0.9.0",
     "phpunit/phpunit": "^6.4",
     "phpstan/phpstan-phpunit": "^0.9.0",
     "symfony/framework-bundle": "^4.0",