Merge branch '4.4' into 5.2

* 4.4:
  [Finder] Fix gitignore regex build with "**"
  Fixed deprecation warnings about passing null as parameter
  [Security] Keep Bulgarian wording consistent across all texts.
  Migrate configuration file for PHP CS Fixer 2.19/3.0
  [Form] Replace broken ServerParams mock

Author: fabpot

Compiler/CheckTypeDeclarationsPass.php

@@ -205,7 +205,7 @@ private function checkType(Definition $checkedDefinition, $value, \ReflectionPar
         if ($value instanceof Definition) {
             $class = $value->getClass();
 
-            if (isset(self::BUILTIN_TYPES[strtolower($class)])) {
+            if ($class && isset(self::BUILTIN_TYPES[strtolower($class)])) {
                 $class = strtolower($class);
             } elseif (!$class || (!$this->autoload && !class_exists($class, false) && !interface_exists($class, false))) {
                 return;

Compiler/RegisterServiceSubscribersPass.php

@@ -88,10 +88,12 @@ protected function processValue($value, bool $isRoot = false)
                 $serviceMap[$key] = new Reference($type);
             }
 
-            if (false !== $i = strpos($name, '::get')) {
-                $name = lcfirst(substr($name, 5 + $i));
-            } elseif (false !== strpos($name, '::')) {
-                $name = null;
+            if ($name) {
+                if (false !== $i = strpos($name, '::get')) {
+                    $name = lcfirst(substr($name, 5 + $i));
+                } elseif (false !== strpos($name, '::')) {
+                    $name = null;
+                }
             }
 
             if (null !== $name && !$this->container->has($name) && !$this->container->has($type.' $'.$name)) {

Compiler/ResolveBindingsPass.php

@@ -178,7 +178,7 @@ protected function processValue($value, bool $isRoot = false)
 
                 $typeHint = ProxyHelper::getTypeHint($reflectionMethod, $parameter);
 
-                if (\array_key_exists($k = ltrim($typeHint, '\\').' $'.$parameter->name, $bindings)) {
+                if ($typeHint && \array_key_exists($k = ltrim($typeHint, '\\').' $'.$parameter->name, $bindings)) {
                     $arguments[$key] = $this->getBindingValue($bindings[$k]);
 
                     continue;