Merge branch '5.2' into 5.3

* 5.2:
  Backport type fixes
  Fix CS
  Avoid triggering the autoloader in Deprecation::isLegacy()
  fix markdown markup
  Backport type fixes
  uzb translation
  [DependencyInjection] Fix doc blocks
  [DependencyInjection] Turn $defaultDeprecationTemplate into a constant
  [Form] better form doc types to support static analysis

Author: nicolas-grekas

DeprecationErrorHandler/Deprecation.php

@@ -14,12 +14,13 @@
 use PHPUnit\Framework\TestCase;
 use PHPUnit\Framework\TestSuite;
 use PHPUnit\Metadata\Api\Groups;
-use PHPUnit\Util\Error\Handler;
 use PHPUnit\Util\Test;
 use Symfony\Bridge\PhpUnit\Legacy\SymfonyTestsListenerFor;
 use Symfony\Component\Debug\DebugClassLoader as LegacyDebugClassLoader;
 use Symfony\Component\ErrorHandler\DebugClassLoader;
 
+class_exists(Groups::class);
+
 /**
  * @internal
  */
@@ -203,7 +204,7 @@ public function isLegacy()
         }
 
         $method = $this->originatingMethod();
-        $groups = class_exists(Groups::class) ? [new Groups(), 'groups'] : [Test::class, 'getGroups'];
+        $groups = class_exists(Groups::class, false) ? [new Groups(), 'groups'] : [Test::class, 'getGroups'];
 
         return 0 === strpos($method, 'testLegacy')
             || 0 === strpos($method, 'provideLegacy')