Updating Symfony lib and dependencies:

Package operations: 2 installs, 23 updates, 0 removals
  - Updating psr/log (1.1.0 => 1.1.2)
  - Updating symfony/debug (v3.4.30 => v3.4.35)
  - Updating symfony/console (v3.4.30 => v3.4.35)
  - Updating symfony/dotenv (v3.4.30 => v3.4.35)
  - Updating symfony/routing (v3.4.30 => v3.4.35)
  - Updating symfony/finder (v3.4.30 => v3.4.35)
  - Updating symfony/filesystem (v3.4.30 => v3.4.35)
  - Installing symfony/polyfill-util (v1.12.0)
  - Installing symfony/polyfill-php56 (v1.12.0)
  - Updating symfony/http-foundation (v3.4.30 => v3.4.35)
  - Updating symfony/event-dispatcher (v3.4.30 => v3.4.35)
  - Updating symfony/http-kernel (v3.4.30 => v3.4.35)
  - Updating symfony/config (v3.4.30 => v3.4.35)
  - Updating symfony/dependency-injection (v3.4.30 => v3.4.35)
  - Updating symfony/class-loader (v3.4.30 => v3.4.35)
  - Updating symfony/cache (v3.4.30 => v3.4.35)
  - Updating symfony/framework-bundle (v3.4.30 => v3.4.35)
  - Updating twig/twig (v1.42.2 => v1.42.4)
  - Updating symfony/twig-bridge (v3.4.30 => v3.4.35)
  - Updating symfony/twig-bundle (v3.4.30 => v3.4.35)
  - Updating symfony/yaml (v3.4.30 => v3.4.35)
  - Updating symfony/stopwatch (v3.4.30 => v3.4.35)
  - Updating symfony/var-dumper (v3.4.30 => v3.4.35)
  - Updating symfony/web-profiler-bundle (v3.4.30 => v3.4.35)
  - Updating symfony/css-selector (v3.4.30 => v3.4.35)

lib/symfony/dependency-injection/Compiler/AutowirePass.php

@@ -79,8 +79,6 @@ class AutowirePass extends AbstractRecursivePass
     /**
      * Creates a resource to help know if this service has changed.
      *
-     * @param \ReflectionClass $reflectionClass
-     *
      * @return AutowireServiceResource
      *
      * @deprecated since version 3.3, to be removed in 4.0. Use ContainerBuilder::getReflectionClass() instead.
@@ -168,9 +166,6 @@ class AutowirePass extends AbstractRecursivePass
     }
 
     /**
-     * @param \ReflectionClass $reflectionClass
-     * @param array            $methodCalls
-     *
      * @return array
      */
     private function autowireCalls(\ReflectionClass $reflectionClass, array $methodCalls)
@@ -205,9 +200,6 @@ class AutowirePass extends AbstractRecursivePass
     /**
      * Autowires the constructor or a method.
      *
-     * @param \ReflectionFunctionAbstract $reflectionMethod
-     * @param array                       $arguments
-     *
      * @return array The autowired arguments
      *
      * @throws AutowiringFailedException
@@ -318,7 +310,7 @@ class AutowirePass extends AbstractRecursivePass
         }
 
         if (!$reference->canBeAutoregistered() || isset($this->types[$type]) || isset($this->ambiguousServiceTypes[$type])) {
-            return;
+            return null;
         }
 
         if (isset($this->autowired[$type])) {
@@ -328,6 +320,8 @@ class AutowirePass extends AbstractRecursivePass
         if (!$this->strictMode) {
             return $this->createAutowiredDefinition($type);
         }
+
+        return null;
     }
 
     /**
@@ -348,8 +342,7 @@ class AutowirePass extends AbstractRecursivePass
     /**
      * Populates the list of available types for a given definition.
      *
-     * @param string     $id
-     * @param Definition $definition
+     * @param string $id
      */
     private function populateAvailableType($id, Definition $definition, $onlyAutowiringTypes)
     {
@@ -425,7 +418,7 @@ class AutowirePass extends AbstractRecursivePass
     private function createAutowiredDefinition($type)
     {
         if (!($typeHint = $this->container->getReflectionClass($type, false)) || !$typeHint->isInstantiable()) {
-            return;
+            return null;
         }
 
         $currentId = $this->currentId;
@@ -445,7 +438,7 @@ class AutowirePass extends AbstractRecursivePass
             $this->lastFailure = $e->getMessage();
             $this->container->log($this, $this->lastFailure);
 
-            return;
+            return null;
         } finally {
             $this->throwOnAutowiringException = $originalThrowSetting;
             $this->currentId = $currentId;
@@ -518,7 +511,7 @@ class AutowirePass extends AbstractRecursivePass
         } elseif ($reference->getRequiringClass() && !$reference->canBeAutoregistered() && !$this->strictMode) {
             return ' It cannot be auto-registered because it is from a different root namespace.';
         } else {
-            return;
+            return '';
         }
 
         return sprintf(' You should maybe alias this %s to %s.', class_exists($type, false) ? 'class' : 'interface', $message);
@@ -572,5 +565,7 @@ class AutowirePass extends AbstractRecursivePass
         if ($aliases) {
             return sprintf('Try changing the type-hint%s to "%s" instead.', $extraContext, $aliases[0]);
         }
+
+        return null;
     }
 }