Add Symfony deprecation handler

Author: Jean85

composer.json

@@ -42,6 +42,7 @@
         "symfony/expression-language": "^2.8||^3.0||^4.0",
         "symfony/framework-bundle": "^2.8||^3.0||^4.0",
         "symfony/monolog-bundle": "^3.0",
+        "symfony/phpunit-bridge": "^5.0",
         "symfony/yaml": "^2.8||^3.0||^4.0"
     },
     "suggest": {

phpunit.xml

@@ -19,4 +19,8 @@
             <directory>./src</directory>
         </whitelist>
     </filter>
+
+    <listeners>
+        <listener class="Symfony\Bridge\PhpUnit\SymfonyTestsListener"/>
+    </listeners>
 </phpunit>