diff --git a/.travis.yml b/.travis.yml
index 53f8e6fd4..0f26c649f 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,6 @@ php:
   - '5.6'
   - '7.0'
   - '7.1'
-  - '7.2'
 
 cache:
   directories:
diff --git a/composer.json b/composer.json
index 238f43680..006b40249 100644
--- a/composer.json
+++ b/composer.json
@@ -32,8 +32,8 @@
     },
     "require-dev": {
         "phpunit/phpunit": "^5.7.4",
-        "squizlabs/php_codesniffer": "^3.0",
-        "friendsofphp/php-cs-fixer": "^2.8"
+        "friendsofphp/php-cs-fixer": "^2.3",
+        "squizlabs/php_codesniffer": "^3.0"
     },
     "scripts": {
         "psalm": "./bin/psalm",
diff --git a/composer.lock b/composer.lock
index 6da71facc..ecaa4aa29 100644
--- a/composer.lock
+++ b/composer.lock
@@ -4,8 +4,8 @@
         "Read more about it at https://getcomposer.org/doc/01-basic-usage.md#composer-lock-the-lock-file",
         "This file is @generated automatically"
     ],
-    "hash": "98a4f100a6b56ce040a9ed03b309320f",
-    "content-hash": "fe8d0dde7a8dd008b7e2a17bc0a6f999",
+    "hash": "a6b477be2c16ff17ecc8e04e8dbe708c",
+    "content-hash": "3a45e2004ea79ef80509f58bfc01aaae",
     "packages": [
         {
             "name": "composer/ca-bundle",
@@ -682,45 +682,39 @@
         },
         {
             "name": "symfony/console",
-            "version": "v3.4.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/console.git",
-                "reference": "9468ad3fba3a5e1f0dc12a96e50e84cddb923cf0"
+                "reference": "c30243cc51f726812be3551316b109a2f5deaf8d"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/console/zipball/9468ad3fba3a5e1f0dc12a96e50e84cddb923cf0",
-                "reference": "9468ad3fba3a5e1f0dc12a96e50e84cddb923cf0",
+                "url": "https://api.github.com/repos/symfony/console/zipball/c30243cc51f726812be3551316b109a2f5deaf8d",
+                "reference": "c30243cc51f726812be3551316b109a2f5deaf8d",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8",
-                "symfony/debug": "~2.8|~3.0|~4.0",
+                "php": ">=5.5.9",
+                "symfony/debug": "~2.8|~3.0",
                 "symfony/polyfill-mbstring": "~1.0"
             },
-            "conflict": {
-                "symfony/dependency-injection": "<3.4",
-                "symfony/process": "<3.3"
-            },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~3.3|~4.0",
-                "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/event-dispatcher": "~2.8|~3.0|~4.0",
-                "symfony/lock": "~3.4|~4.0",
-                "symfony/process": "~3.3|~4.0"
+                "symfony/event-dispatcher": "~2.8|~3.0",
+                "symfony/filesystem": "~2.8|~3.0",
+                "symfony/process": "~2.8|~3.0"
             },
             "suggest": {
                 "psr/log": "For using the console logger",
                 "symfony/event-dispatcher": "",
-                "symfony/lock": "",
+                "symfony/filesystem": "",
                 "symfony/process": ""
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -747,36 +741,37 @@
             ],
             "description": "Symfony Console Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-29 13:28:14"
+            "time": "2017-04-04 14:33:42"
         },
         {
             "name": "symfony/debug",
-            "version": "v4.0.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/debug.git",
-                "reference": "26a15dab86c3820473716be4f846eac774ad4ad9"
+                "reference": "56f613406446a4a0a031475cfd0a01751de22659"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/debug/zipball/26a15dab86c3820473716be4f846eac774ad4ad9",
-                "reference": "26a15dab86c3820473716be4f846eac774ad4ad9",
+                "url": "https://api.github.com/repos/symfony/debug/zipball/56f613406446a4a0a031475cfd0a01751de22659",
+                "reference": "56f613406446a4a0a031475cfd0a01751de22659",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3",
+                "php": ">=5.5.9",
                 "psr/log": "~1.0"
             },
             "conflict": {
-                "symfony/http-kernel": "<3.4"
+                "symfony/http-kernel": ">=2.3,<2.3.24|~2.4.0|>=2.5,<2.5.9|>=2.6,<2.6.2"
             },
             "require-dev": {
-                "symfony/http-kernel": "~3.4|~4.0"
+                "symfony/class-loader": "~2.8|~3.0",
+                "symfony/http-kernel": "~2.8|~3.0"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -803,29 +798,29 @@
             ],
             "description": "Symfony Debug Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-21 09:27:49"
+            "time": "2017-03-28 21:38:24"
         },
         {
             "name": "symfony/filesystem",
-            "version": "v3.4.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/filesystem.git",
-                "reference": "de56eee71e0a128d8c54ccc1909cdefd574bad0f"
+                "reference": "64421e6479c4a8e60d790fb666bd520992861b66"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/filesystem/zipball/de56eee71e0a128d8c54ccc1909cdefd574bad0f",
-                "reference": "de56eee71e0a128d8c54ccc1909cdefd574bad0f",
+                "url": "https://api.github.com/repos/symfony/filesystem/zipball/64421e6479c4a8e60d790fb666bd520992861b66",
+                "reference": "64421e6479c4a8e60d790fb666bd520992861b66",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -852,29 +847,29 @@
             ],
             "description": "Symfony Filesystem Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-19 18:59:05"
+            "time": "2017-03-26 15:47:15"
         },
         {
             "name": "symfony/finder",
-            "version": "v3.4.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/finder.git",
-                "reference": "dac8d7db537bac7ad8143eb11360a8c2231f251a"
+                "reference": "b20900ce5ea164cd9314af52725b0bb5a758217a"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/finder/zipball/dac8d7db537bac7ad8143eb11360a8c2231f251a",
-                "reference": "dac8d7db537bac7ad8143eb11360a8c2231f251a",
+                "url": "https://api.github.com/repos/symfony/finder/zipball/b20900ce5ea164cd9314af52725b0bb5a758217a",
+                "reference": "b20900ce5ea164cd9314af52725b0bb5a758217a",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -901,20 +896,20 @@
             ],
             "description": "Symfony Finder Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-05 16:10:10"
+            "time": "2017-03-20 09:32:19"
         },
         {
             "name": "symfony/polyfill-mbstring",
-            "version": "v1.6.0",
+            "version": "v1.3.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/polyfill-mbstring.git",
-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296"
+                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296",
-                "reference": "2ec8b39c38cb16674bbf3fea2b6ce5bf117e1296",
+                "url": "https://api.github.com/repos/symfony/polyfill-mbstring/zipball/e79d363049d1c2128f133a2667e4f4190904f7f4",
+                "reference": "e79d363049d1c2128f133a2667e4f4190904f7f4",
                 "shasum": ""
             },
             "require": {
@@ -926,7 +921,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -960,29 +955,29 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11 12:05:26"
+            "time": "2016-11-14 01:06:16"
         },
         {
             "name": "symfony/process",
-            "version": "v3.4.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/process.git",
-                "reference": "db25e810fd5e124085e3777257d0cf4ae533d0ea"
+                "reference": "57fdaa55827ae14d617550ebe71a820f0a5e2282"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/process/zipball/db25e810fd5e124085e3777257d0cf4ae533d0ea",
-                "reference": "db25e810fd5e124085e3777257d0cf4ae533d0ea",
+                "url": "https://api.github.com/repos/symfony/process/zipball/57fdaa55827ae14d617550ebe71a820f0a5e2282",
+                "reference": "57fdaa55827ae14d617550ebe71a820f0a5e2282",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.5.9|>=7.0.8"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "3.4-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -1009,27 +1004,27 @@
             ],
             "description": "Symfony Process Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-22 12:18:49"
+            "time": "2017-03-27 18:07:02"
         }
     ],
     "packages-dev": [
         {
             "name": "doctrine/annotations",
-            "version": "v1.5.0",
+            "version": "v1.4.0",
             "source": {
                 "type": "git",
                 "url": "https://github.com/doctrine/annotations.git",
-                "reference": "5beebb01b025c94e93686b7a0ed3edae81fe3e7f"
+                "reference": "54cacc9b81758b14e3ce750f205a393d52339e97"
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             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/doctrine/annotations/zipball/5beebb01b025c94e93686b7a0ed3edae81fe3e7f",
-                "reference": "5beebb01b025c94e93686b7a0ed3edae81fe3e7f",
+                "url": "https://api.github.com/repos/doctrine/annotations/zipball/54cacc9b81758b14e3ce750f205a393d52339e97",
+                "reference": "54cacc9b81758b14e3ce750f205a393d52339e97",
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             },
             "require": {
                 "doctrine/lexer": "1.*",
-                "php": "^7.1"
+                "php": "^5.6 || ^7.0"
             },
             "require-dev": {
                 "doctrine/cache": "1.*",
@@ -1038,7 +1033,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.5.x-dev"
+                    "dev-master": "1.4.x-dev"
                 }
             },
             "autoload": {
@@ -1079,7 +1074,7 @@
                 "docblock",
                 "parser"
             ],
-            "time": "2017-07-22 10:58:02"
+            "time": "2017-02-24 16:22:25"
         },
         {
             "name": "doctrine/instantiator",
@@ -1191,66 +1186,63 @@
         },
         {
             "name": "friendsofphp/php-cs-fixer",
-            "version": "v2.8.3",
+            "version": "v2.3.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/FriendsOfPHP/PHP-CS-Fixer.git",
-                "reference": "d9ec9b848cbf930c31dea3693d34dbd8b9c95295"
+                "reference": "d5257f7433bb490299c4f300d95598fd911a8ab0"
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-                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/d9ec9b848cbf930c31dea3693d34dbd8b9c95295",
-                "reference": "d9ec9b848cbf930c31dea3693d34dbd8b9c95295",
+                "url": "https://api.github.com/repos/FriendsOfPHP/PHP-CS-Fixer/zipball/d5257f7433bb490299c4f300d95598fd911a8ab0",
+                "reference": "d5257f7433bb490299c4f300d95598fd911a8ab0",
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             "require": {
-                "composer/semver": "^1.4",
                 "doctrine/annotations": "^1.2",
-                "ext-json": "*",
                 "ext-tokenizer": "*",
-                "gecko-packages/gecko-php-unit": "^2.0 || ^3.0",
-                "php": "^5.6 || >=7.0 <7.3",
-                "php-cs-fixer/diff": "^1.2",
-                "symfony/console": "^3.2 || ^4.0",
-                "symfony/event-dispatcher": "^3.0 || ^4.0",
-                "symfony/filesystem": "^3.0 || ^4.0",
-                "symfony/finder": "^3.0 || ^4.0",
-                "symfony/options-resolver": "^3.0 || ^4.0",
+                "php": "^5.6 || >=7.0 <7.2",
+                "sebastian/diff": "^1.4",
+                "symfony/console": "^3.0",
+                "symfony/event-dispatcher": "^3.0",
+                "symfony/filesystem": "^3.0",
+                "symfony/finder": "^3.0",
+                "symfony/options-resolver": "^3.0",
+                "symfony/polyfill-php54": "^1.0",
+                "symfony/polyfill-php55": "^1.3",
                 "symfony/polyfill-php70": "^1.0",
-                "symfony/polyfill-php72": "^1.4",
-                "symfony/process": "^3.0 || ^4.0",
-                "symfony/stopwatch": "^3.0 || ^4.0"
+                "symfony/polyfill-xml": "^1.3",
+                "symfony/process": "^3.0",
+                "symfony/stopwatch": "^3.0"
             },
             "conflict": {
-                "hhvm": "*"
+                "hhvm": "<3.18"
             },
             "require-dev": {
-                "johnkary/phpunit-speedtrap": "^1.1 || ^2.0@dev",
+                "gecko-packages/gecko-php-unit": "^2.0",
                 "justinrainbow/json-schema": "^5.0",
-                "php-coveralls/php-coveralls": "^1.0.2",
-                "php-cs-fixer/accessible-object": "^1.0",
-                "phpunit/phpunit": "^5.7.23 || ^6.4.3",
-                "symfony/phpunit-bridge": "^3.2.2 || ^4.0"
+                "phpunit/phpunit": "^4.5 || ^5.0",
+                "satooshi/php-coveralls": "^1.0",
+                "symfony/phpunit-bridge": "^3.2.2"
             },
             "suggest": {
                 "ext-mbstring": "For handling non-UTF8 characters in cache signature.",
+                "ext-xml": "For better performance.",
                 "symfony/polyfill-mbstring": "When enabling `ext-mbstring` is not possible."
             },
             "bin": [
                 "php-cs-fixer"
             ],
             "type": "application",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "2.3-dev"
+                }
+            },
             "autoload": {
                 "psr-4": {
                     "PhpCsFixer\\": "src/"
-                },
-                "classmap": [
-                    "tests/Test/Assert/AssertTokensTrait.php",
-                    "tests/Test/AbstractFixerTestCase.php",
-                    "tests/Test/AbstractIntegrationTestCase.php",
-                    "tests/Test/IntegrationCase.php",
-                    "tests/Test/IntegrationCaseFactory.php"
-                ]
+                }
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
@@ -1267,56 +1259,49 @@
                 }
             ],
             "description": "A tool to automatically fix PHP code style",
-            "time": "2017-11-26 20:45:16"
+            "time": "2017-04-25 20:50:30"
         },
         {
-            "name": "gecko-packages/gecko-php-unit",
-            "version": "v3.0",
+            "name": "ircmaxell/password-compat",
+            "version": "v1.0.4",
             "source": {
                 "type": "git",
-                "url": "https://github.com/GeckoPackages/GeckoPHPUnit.git",
-                "reference": "6a866551dffc2154c1b091bae3a7877d39c25ca3"
+                "url": "https://github.com/ircmaxell/password_compat.git",
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-                "reference": "6a866551dffc2154c1b091bae3a7877d39c25ca3",
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-            "require": {
-                "php": "^7.0"
-            },
             "require-dev": {
-                "phpunit/phpunit": "^6.0"
-            },
-            "suggest": {
-                "ext-dom": "When testing with xml.",
-                "ext-libxml": "When testing with xml.",
-                "phpunit/phpunit": "This is an extension for it so make sure you have it some way."
+                "phpunit/phpunit": "4.*"
             },
             "type": "library",
-            "extra": {
-                "branch-alias": {
-                    "dev-master": "3.0-dev"
-                }
-            },
             "autoload": {
-                "psr-4": {
-                    "GeckoPackages\\PHPUnit\\": "src/PHPUnit"
-                }
+                "files": [
+                    "lib/password.php"
+                ]
             },
             "notification-url": "https://packagist.org/downloads/",
             "license": [
                 "MIT"
             ],
-            "description": "Additional PHPUnit asserts and constraints.",
-            "homepage": "https://github.com/GeckoPackages",
-            "keywords": [
-                "extension",
-                "filesystem",
-                "phpunit"
+            "authors": [
+                {
+                    "name": "Anthony Ferrara",
+                    "email": "ircmaxell@php.net",
+                    "homepage": "http://blog.ircmaxell.com"
+                }
             ],
-            "time": "2017-08-23 07:46:41"
+            "description": "A compatibility library for the proposed simplified password hashing algorithm: https://wiki.php.net/rfc/password_hash",
+            "homepage": "https://github.com/ircmaxell/password_compat",
+            "keywords": [
+                "hashing",
+                "password"
+            ],
+            "time": "2014-11-20 16:49:30"
         },
         {
             "name": "myclabs/deep-copy",
@@ -1362,16 +1347,16 @@
         },
         {
             "name": "paragonie/random_compat",
-            "version": "v2.0.11",
+            "version": "v2.0.10",
             "source": {
                 "type": "git",
                 "url": "https://github.com/paragonie/random_compat.git",
-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8"
+                "reference": "634bae8e911eefa89c1abfbf1b66da679ac8f54d"
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-                "reference": "5da4d3c796c275c55f057af5a643ae297d96b4d8",
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@@ -1406,55 +1391,7 @@
                 "pseudorandom",
                 "random"
             ],
-            "time": "2017-09-27 21:40:39"
-        },
-        {
-            "name": "php-cs-fixer/diff",
-            "version": "v1.2.0",
-            "source": {
-                "type": "git",
-                "url": "https://github.com/PHP-CS-Fixer/diff.git",
-                "reference": "f0ef6133d674137e902fdf8a6f2e8e97e14a087b"
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-                "shasum": ""
-            },
-            "require": {
-                "php": "^5.6 || ^7.0"
-            },
-            "require-dev": {
-                "phpunit/phpunit": "^4.8.35 || ^5.4.3",
-                "symfony/process": "^3.3"
-            },
-            "type": "library",
-            "autoload": {
-                "classmap": [
-                    "src/"
-                ]
-            },
-            "notification-url": "https://packagist.org/downloads/",
-            "authors": [
-                {
-                    "name": "Kore Nordmann",
-                    "email": "mail@kore-nordmann.de"
-                },
-                {
-                    "name": "Sebastian Bergmann",
-                    "email": "sebastian@phpunit.de"
-                },
-                {
-                    "name": "SpacePossum"
-                }
-            ],
-            "description": "sebastian/diff v2 backport support for PHP5.6",
-            "homepage": "https://github.com/PHP-CS-Fixer",
-            "keywords": [
-                "diff"
-            ],
-            "time": "2017-10-19 09:58:18"
+            "time": "2017-03-13 16:27:32"
         },
         {
             "name": "phpdocumentor/reflection-common",
@@ -2166,23 +2103,23 @@
         },
         {
             "name": "sebastian/diff",
-            "version": "1.4.3",
+            "version": "1.4.1",
             "source": {
                 "type": "git",
                 "url": "https://github.com/sebastianbergmann/diff.git",
-                "reference": "7f066a26a962dbe58ddea9f72a4e82874a3975a4"
+                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/7f066a26a962dbe58ddea9f72a4e82874a3975a4",
-                "reference": "7f066a26a962dbe58ddea9f72a4e82874a3975a4",
+                "url": "https://api.github.com/repos/sebastianbergmann/diff/zipball/13edfd8706462032c2f52b4b862974dd46b71c9e",
+                "reference": "13edfd8706462032c2f52b4b862974dd46b71c9e",
                 "shasum": ""
             },
             "require": {
-                "php": "^5.3.3 || ^7.0"
+                "php": ">=5.3.3"
             },
             "require-dev": {
-                "phpunit/phpunit": "^4.8.35 || ^5.7 || ^6.0"
+                "phpunit/phpunit": "~4.8"
             },
             "type": "library",
             "extra": {
@@ -2214,7 +2151,7 @@
             "keywords": [
                 "diff"
             ],
-            "time": "2017-05-22 07:24:03"
+            "time": "2015-12-08 07:14:41"
         },
         {
             "name": "sebastian/environment",
@@ -2621,30 +2558,27 @@
         },
         {
             "name": "symfony/event-dispatcher",
-            "version": "v4.0.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/event-dispatcher.git",
-                "reference": "6223fb2b68e7059e8d5843c0103999a84e7275cf"
+                "reference": "154bb1ef7b0e42ccc792bd53edbce18ed73440ca"
             },
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                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/6223fb2b68e7059e8d5843c0103999a84e7275cf",
-                "reference": "6223fb2b68e7059e8d5843c0103999a84e7275cf",
+                "url": "https://api.github.com/repos/symfony/event-dispatcher/zipball/154bb1ef7b0e42ccc792bd53edbce18ed73440ca",
+                "reference": "154bb1ef7b0e42ccc792bd53edbce18ed73440ca",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
-            },
-            "conflict": {
-                "symfony/dependency-injection": "<3.4"
+                "php": ">=5.5.9"
             },
             "require-dev": {
                 "psr/log": "~1.0",
-                "symfony/config": "~3.4|~4.0",
-                "symfony/dependency-injection": "~3.4|~4.0",
-                "symfony/expression-language": "~3.4|~4.0",
-                "symfony/stopwatch": "~3.4|~4.0"
+                "symfony/config": "~2.8|~3.0",
+                "symfony/dependency-injection": "~2.8|~3.0",
+                "symfony/expression-language": "~2.8|~3.0",
+                "symfony/stopwatch": "~2.8|~3.0"
             },
             "suggest": {
                 "symfony/dependency-injection": "",
@@ -2653,7 +2587,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -2680,29 +2614,29 @@
             ],
             "description": "Symfony EventDispatcher Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-09 17:30:28"
+            "time": "2017-04-04 07:26:27"
         },
         {
             "name": "symfony/options-resolver",
-            "version": "v4.0.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/options-resolver.git",
-                "reference": "ef617a2867c7d889d4ecee3c29595698d87474a4"
+                "reference": "6a19be85237fe8bbd4975f86942b4763bb0da6ca"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/options-resolver/zipball/ef617a2867c7d889d4ecee3c29595698d87474a4",
-                "reference": "ef617a2867c7d889d4ecee3c29595698d87474a4",
+                "url": "https://api.github.com/repos/symfony/options-resolver/zipball/6a19be85237fe8bbd4975f86942b4763bb0da6ca",
+                "reference": "6a19be85237fe8bbd4975f86942b4763bb0da6ca",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -2734,20 +2668,134 @@
                 "configuration",
                 "options"
             ],
-            "time": "2017-11-07 14:45:01"
+            "time": "2017-03-21 21:44:32"
         },
         {
-            "name": "symfony/polyfill-php70",
-            "version": "v1.6.0",
+            "name": "symfony/polyfill-php54",
+            "version": "v1.3.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/polyfill-php70.git",
-                "reference": "0442b9c0596610bd24ae7b5f0a6cdbbc16d9fcff"
+                "url": "https://github.com/symfony/polyfill-php54.git",
+                "reference": "90e085822963fdcc9d1c5b73deb3d2e5783b16a0"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php70/zipball/0442b9c0596610bd24ae7b5f0a6cdbbc16d9fcff",
-                "reference": "0442b9c0596610bd24ae7b5f0a6cdbbc16d9fcff",
+                "url": "https://api.github.com/repos/symfony/polyfill-php54/zipball/90e085822963fdcc9d1c5b73deb3d2e5783b16a0",
+                "reference": "90e085822963fdcc9d1c5b73deb3d2e5783b16a0",
+                "shasum": ""
+            },
+            "require": {
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php54\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ],
+                "classmap": [
+                    "Resources/stubs"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 5.4+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2016-11-14 01:06:16"
+        },
+        {
+            "name": "symfony/polyfill-php55",
+            "version": "v1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php55.git",
+                "reference": "03e3f0350bca2220e3623a0e340eef194405fc67"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php55/zipball/03e3f0350bca2220e3623a0e340eef194405fc67",
+                "reference": "03e3f0350bca2220e3623a0e340eef194405fc67",
+                "shasum": ""
+            },
+            "require": {
+                "ircmaxell/password-compat": "~1.0",
+                "php": ">=5.3.3"
+            },
+            "type": "library",
+            "extra": {
+                "branch-alias": {
+                    "dev-master": "1.3-dev"
+                }
+            },
+            "autoload": {
+                "psr-4": {
+                    "Symfony\\Polyfill\\Php55\\": ""
+                },
+                "files": [
+                    "bootstrap.php"
+                ]
+            },
+            "notification-url": "https://packagist.org/downloads/",
+            "license": [
+                "MIT"
+            ],
+            "authors": [
+                {
+                    "name": "Nicolas Grekas",
+                    "email": "p@tchwork.com"
+                },
+                {
+                    "name": "Symfony Community",
+                    "homepage": "https://symfony.com/contributors"
+                }
+            ],
+            "description": "Symfony polyfill backporting some PHP 5.5+ features to lower PHP versions",
+            "homepage": "https://symfony.com",
+            "keywords": [
+                "compatibility",
+                "polyfill",
+                "portable",
+                "shim"
+            ],
+            "time": "2016-11-14 01:06:16"
+        },
+        {
+            "name": "symfony/polyfill-php70",
+            "version": "v1.3.0",
+            "source": {
+                "type": "git",
+                "url": "https://github.com/symfony/polyfill-php70.git",
+                "reference": "13ce343935f0f91ca89605a2f6ca6f5c2f3faac2"
+            },
+            "dist": {
+                "type": "zip",
+                "url": "https://api.github.com/repos/symfony/polyfill-php70/zipball/13ce343935f0f91ca89605a2f6ca6f5c2f3faac2",
+                "reference": "13ce343935f0f91ca89605a2f6ca6f5c2f3faac2",
                 "shasum": ""
             },
             "require": {
@@ -2757,7 +2805,7 @@
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
@@ -2793,34 +2841,37 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11 12:05:26"
+            "time": "2016-11-14 01:06:16"
         },
         {
-            "name": "symfony/polyfill-php72",
-            "version": "v1.6.0",
+            "name": "symfony/polyfill-xml",
+            "version": "v1.3.0",
             "source": {
                 "type": "git",
-                "url": "https://github.com/symfony/polyfill-php72.git",
-                "reference": "6de4f4884b97abbbed9f0a84a95ff2ff77254254"
+                "url": "https://github.com/symfony/polyfill-xml.git",
+                "reference": "64b6a864f18ab4fddad49f5025f805f6781dfabd"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/polyfill-php72/zipball/6de4f4884b97abbbed9f0a84a95ff2ff77254254",
-                "reference": "6de4f4884b97abbbed9f0a84a95ff2ff77254254",
+                "url": "https://api.github.com/repos/symfony/polyfill-xml/zipball/64b6a864f18ab4fddad49f5025f805f6781dfabd",
+                "reference": "64b6a864f18ab4fddad49f5025f805f6781dfabd",
                 "shasum": ""
             },
             "require": {
                 "php": ">=5.3.3"
             },
+            "suggest": {
+                "ext-xml": "For best performance"
+            },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "1.6-dev"
+                    "dev-master": "1.3-dev"
                 }
             },
             "autoload": {
                 "psr-4": {
-                    "Symfony\\Polyfill\\Php72\\": ""
+                    "Symfony\\Polyfill\\Xml\\": ""
                 },
                 "files": [
                     "bootstrap.php"
@@ -2840,7 +2891,7 @@
                     "homepage": "https://symfony.com/contributors"
                 }
             ],
-            "description": "Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions",
+            "description": "Symfony polyfill for xml's utf8_encode and utf8_decode functions",
             "homepage": "https://symfony.com",
             "keywords": [
                 "compatibility",
@@ -2848,29 +2899,29 @@
                 "portable",
                 "shim"
             ],
-            "time": "2017-10-11 12:05:26"
+            "time": "2016-11-14 01:06:16"
         },
         {
             "name": "symfony/stopwatch",
-            "version": "v4.0.0",
+            "version": "v3.2.7",
             "source": {
                 "type": "git",
                 "url": "https://github.com/symfony/stopwatch.git",
-                "reference": "ac0e49150555c703fef6b696d8eaba1db7a3ca03"
+                "reference": "c5ee0f8650c84b4d36a5f76b3b504233feaabf75"
             },
             "dist": {
                 "type": "zip",
-                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/ac0e49150555c703fef6b696d8eaba1db7a3ca03",
-                "reference": "ac0e49150555c703fef6b696d8eaba1db7a3ca03",
+                "url": "https://api.github.com/repos/symfony/stopwatch/zipball/c5ee0f8650c84b4d36a5f76b3b504233feaabf75",
+                "reference": "c5ee0f8650c84b4d36a5f76b3b504233feaabf75",
                 "shasum": ""
             },
             "require": {
-                "php": "^7.1.3"
+                "php": ">=5.5.9"
             },
             "type": "library",
             "extra": {
                 "branch-alias": {
-                    "dev-master": "4.0-dev"
+                    "dev-master": "3.2-dev"
                 }
             },
             "autoload": {
@@ -2897,7 +2948,7 @@
             ],
             "description": "Symfony Stopwatch Component",
             "homepage": "https://symfony.com",
-            "time": "2017-11-09 12:45:29"
+            "time": "2017-02-18 17:28:00"
         },
         {
             "name": "symfony/yaml",
diff --git a/tests/MethodMutationTest.php b/tests/MethodMutationTest.php
index b684c007c..6a2b5befb 100644
--- a/tests/MethodMutationTest.php
+++ b/tests/MethodMutationTest.php
@@ -96,6 +96,7 @@ class MethodMutationTest extends TestCase
 
         $this->assertSame('UserViewData', (string)$method_context->vars_in_scope['$this->user_viewdata']);
         $this->assertSame('string', (string)$method_context->vars_in_scope['$this->user_viewdata->name']);
+        /** @psalm-suppress */
         $this->assertTrue($method_context->vars_possibly_in_scope['$this->title']);
     }