improve deprecation messages

Author: xabbuh

TypedReference.php

@@ -29,7 +29,7 @@ class TypedReference extends Reference
     public function __construct(string $id, string $type, $invalidBehavior = ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE)
     {
         if (\is_string($invalidBehavior) || 3 < \func_num_args()) {
-            @trigger_error(sprintf('The $requiringClass argument of "%s" is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
+            @trigger_error(sprintf('The $requiringClass argument of "%s()" is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
 
             $this->requiringClass = $invalidBehavior;
             $invalidBehavior = 3 < \func_num_args() ? \func_get_arg(3) : ContainerInterface::EXCEPTION_ON_INVALID_REFERENCE;
@@ -48,7 +48,7 @@ public function getType()
      */
     public function getRequiringClass()
     {
-        @trigger_error(sprintf('The "%s" method is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
+        @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
 
         return $this->requiringClass ?? '';
     }
@@ -58,7 +58,7 @@ public function getRequiringClass()
      */
     public function canBeAutoregistered()
     {
-        @trigger_error(sprintf('The "%s" method is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
+        @trigger_error(sprintf('The "%s()" method is deprecated since Symfony 4.1.', __METHOD__), E_USER_DEPRECATED);
 
         return $this->requiringClass && (false !== $i = strpos($this->type, '\\')) && 0 === strncasecmp($this->type, $this->requiringClass, 1 + $i);
     }