Merge branch '4.2' into 4.3

* 4.2:
  minor: add some test in the ldap component
  [Bridge\ProxyManager] isProxyCandidate() does not take into account interfaces
  [Routing][AnnotationClassLoader] fix utf-8 encoding in default route name
  fixed a phpdoc
  [Debug] Wrap call to require_once in a try/catch
  prevent deprecation when filesize matches error code
  [PropertyInfo] Add missing documentation link in Readme
  Use the current working dir as default first arg in 'link' binary
  Respect parent class contract in ContainerAwareDoctrineEventManager
  [Validator] Add the missing translations for the Danish ("da") locale
  [PropertyAccess] Add missing property to PropertyAccessor
  [Cache] fix saving unrelated keys in recursive callback calls
  [Serializer] Fix denormalization of object with variadic constructor typed argument
  Allow set 'None' on samesite cookie flag
  Making cache rebuild correctly with MessageSubscriberInterface return values
  Fix finding parent definition

Author: nicolas-grekas

Loader/AnnotationClassLoader.php

@@ -248,7 +248,8 @@ public function getResolver()
      */
     protected function getDefaultRouteName(\ReflectionClass $class, \ReflectionMethod $method)
     {
-        $name = strtolower(str_replace('\\', '_', $class->name).'_'.$method->name);
+        $name = str_replace('\\', '_', $class->name).'_'.$method->name;
+        $name = \function_exists('mb_strtolower') && preg_match('//u', $name) ? mb_strtolower($name, 'UTF-8') : strtolower($name);
         if ($this->defaultRouteIndex > 0) {
             $name .= '_'.$this->defaultRouteIndex;
         }

Tests/Fixtures/AnnotatedClasses/EncodingClass.php

@@ -0,0 +1,10 @@
+<?php
+
+namespace Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses;
+
+class EncodingClass
+{
+    public function routeÀction()
+    {
+    }
+}

Tests/Loader/AnnotationClassLoaderTest.php

@@ -306,6 +306,34 @@ public function testLocalizedPrefixWithoutRouteLocale()
         $this->assertEquals('/nl/suffix', $routes->get('action.nl')->getPath());
     }
 
+    /**
+     * @requires function mb_strtolower
+     */
+    public function testDefaultRouteName()
+    {
+        $methodRouteData = [
+            'name' => null,
+        ];
+
+        $reader = $this->getReader();
+        $reader
+            ->expects($this->once())
+            ->method('getMethodAnnotations')
+            ->will($this->returnValue([new RouteAnnotation($methodRouteData)]))
+        ;
+
+        $loader = new class($reader) extends AnnotationClassLoader {
+            protected function configureRoute(Route $route, \ReflectionClass $class, \ReflectionMethod $method, $annot)
+            {
+            }
+        };
+        $routeCollection = $loader->load('Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\EncodingClass');
+
+        $defaultName = array_keys($routeCollection->all())[0];
+
+        $this->assertSame($defaultName, 'symfony_component_routing_tests_fixtures_annotatedclasses_encodingclass_routeàction');
+    }
+
     public function testLoadingRouteWithPrefix()
     {
         $routes = $this->loader->load(RouteWithPrefixController::class);

Tests/Loader/AnnotationDirectoryLoaderTest.php

@@ -29,7 +29,7 @@ protected function setUp()
 
     public function testLoad()
     {
-        $this->reader->expects($this->exactly(3))->method('getClassAnnotation');
+        $this->reader->expects($this->exactly(4))->method('getClassAnnotation');
 
         $this->reader
             ->expects($this->any())
@@ -52,6 +52,7 @@ public function testLoadIgnoresHiddenDirectories()
             'Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BarClass',
             'Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\BazClass',
             'Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\FooClass',
+            'Symfony\Component\Routing\Tests\Fixtures\AnnotatedClasses\EncodingClass',
         ]);
 
         $this->reader