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

Filesystem.php

@@ -751,7 +751,7 @@ private static function box(callable $func, ...$args)
     /**
      * @internal
      */
-    public static function handleError($type, $msg)
+    public static function handleError(int $type, string $msg)
     {
         self::$lastError = $msg;
     }

Tests/Fixtures/MockStream/MockStream.php

@@ -26,18 +26,18 @@ class MockStream
      * @param string $opened_path If the path is opened successfully, and STREAM_USE_PATH is set in options,
      *                            opened_path should be set to the full path of the file/resource that was actually opened
      */
-    public function stream_open($path, $mode, $options, &$opened_path): bool
+    public function stream_open(string $path, string $mode, int $options, string &$opened_path = null): bool
     {
         return true;
     }
 
     /**
      * @param string $path  The file path or URL to stat
-     * @param array  $flags Holds additional flags set by the streams API
+     * @param int    $flags Holds additional flags set by the streams API
      *
      * @return array File stats
      */
-    public function url_stat($path, $flags): array
+    public function url_stat(string $path, int $flags): array
     {
         return [];
     }