Add refactoring and upgrade tool, Rector

Util that enable us to upgrade parts of code base if needed.

composer.json

@@ -34,10 +34,11 @@
     }
   },
   "require-dev": {
-    "roave/security-advisories": "dev-latest",
     "phan/phan": "4.x",
     "phpstan/phpstan": "^0.12.83",
     "phpunit/phpunit": "^9",
+    "rector/rector": "^0.11.53",
+    "roave/security-advisories": "dev-latest",
     "squizlabs/php_codesniffer": "3.*"
   }
 }

composer.lock

@@ -4,7 +4,7 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#installing-dependencies",
         "This file is @generated automatically"
     ],
-    "content-hash": "6a721a617a138fb2f051106c7f959a79",
+    "content-hash": "3fa51561c5a390a56138089724f39b9d",
     "packages": [
         {
             "name": "psr/cache",
@@ -1959,16 +1959,16 @@
         },
         {
             "name": "phpstan/phpstan",
-            "version": "0.12.99",
+            "version": "0.12.98",
             "source": {
                 "type": "git",
                 "url": "https://github.com/phpstan/phpstan.git",
-                "reference": "b4d40f1d759942f523be267a1bab6884f46ca3f7"
+                "reference": "3bb7cc246c057405dd5e290c3ecc62ab51d57e00"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/b4d40f1d759942f523be267a1bab6884f46ca3f7",
-                "reference": "b4d40f1d759942f523be267a1bab6884f46ca3f7",
+                "url": "https://api.github.com/repos/phpstan/phpstan/zipball/3bb7cc246c057405dd5e290c3ecc62ab51d57e00",
+                "reference": "3bb7cc246c057405dd5e290c3ecc62ab51d57e00",
                 "shasum": ""
             },
             "require": {
@@ -1999,7 +1999,7 @@
             "description": "PHPStan - PHP Static Analysis Tool",
             "support": {
                 "issues": "https://github.com/phpstan/phpstan/issues",
-                "source": "https://github.com/phpstan/phpstan/tree/0.12.99"
+                "source": "https://github.com/phpstan/phpstan/tree/0.12.98"
             },
             "funding": [
                 {
@@ -2019,7 +2019,7 @@
                     "type": "tidelift"
                 }
             ],
-            "time": "2021-09-12T20:09:55+00:00"
+            "time": "2021-09-02T12:33:01+00:00"
         },
         {
             "name": "phpunit/php-code-coverage",
@@ -2442,6 +2442,65 @@
             ],
             "time": "2021-08-31T06:47:40+00:00"
         },
+        {
+            "name": "rector/rector",
+            "version": "0.11.53",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/rectorphp/rector.git",
+                "reference": "110c96451dee4dd58d3a1ffc05e0b700892d6601"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/rectorphp/rector/zipball/110c96451dee4dd58d3a1ffc05e0b700892d6601",
+                "reference": "110c96451dee4dd58d3a1ffc05e0b700892d6601",
+                "shasum": ""
+            },
+            "require": {
+                "php": "^7.1|^8.0",
+                "phpstan/phpstan": "0.12.98"
+            },
+            "conflict": {
+                "phpstan/phpdoc-parser": "<=0.5.3",
+                "phpstan/phpstan": "<=0.12.82",
+                "rector/rector-cakephp": "*",
+                "rector/rector-doctrine": "*",
+                "rector/rector-nette": "*",
+                "rector/rector-phpunit": "*",
+                "rector/rector-prefixed": "*",
+                "rector/rector-symfony": "*"
+            },
+            "bin": [
+                "bin/rector"
+            ],
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-main": "0.11-dev"
+                }
+            },
+            "autoload": {
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "description": "Prefixed and PHP 7.1 downgraded version of rector/rector",
+            "support": {
+                "issues": "https://github.com/rectorphp/rector/issues",
+                "source": "https://github.com/rectorphp/rector/tree/0.11.53"
+            },
+            "funding": [
+                {
+                    "url": "https://github.com/tomasvotruba",
+                    "type": "github"
+                }
+            ],
+            "time": "2021-09-09T18:12:42+00:00"
+        },
         {
             "name": "roave/security-advisories",
             "version": "dev-latest",