Fix deprecation and add baseline (#1096)

Author: jderusse

phpunit.xml.dist

@@ -13,8 +13,8 @@
     </include>
   </coverage>
   <php>
-    <server name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0" />
     <ini name="error_reporting" value="-1"/>
+    <env name="SYMFONY_DEPRECATIONS_HELPER" value="max[self]=0&amp;verbose=0" />
   </php>
   <testsuites>
     <testsuite name="Test Suite">