Merge branch '6.1' into 6.2

* 6.1:
  [Intl] Add Scripts & Languages links
  [Filesystem] Fix check path methods
  [Filesystem] Add type hints readlink()
  [ErrorHandler] Add return type hints
  [HttpKernel] Add return type for handle method

Author: javiereguiluz

components/filesystem.rst

@@ -221,7 +221,7 @@ systems (unlike PHP's :phpfunction:`readlink` function)::
 
 Its behavior is the following::
 
-    public function readlink($path, $canonicalize = false)
+    public function readlink(string $path, bool $canonicalize = false): ?string
 
 * When ``$canonicalize`` is ``false``:
     * if ``$path`` does not exist or is not a link, it returns ``null``.
@@ -399,8 +399,8 @@ as necessary::
     echo Path::makeRelative('/var/www/project/config/config.yaml', '/var/www/project/uploads');
     // => ../config/config.yaml
 
-Use :method:`Symfony\\Component\\Filesystem\\Path::makeAbsolute` and
-:method:`Symfony\\Component\\Filesystem\\Path::makeRelative` to check whether a
+Use :method:`Symfony\\Component\\Filesystem\\Path::isAbsolute` and
+:method:`Symfony\\Component\\Filesystem\\Path::isRelative` to check whether a
 path is absolute or relative::
 
     Path::isAbsolute('C:\Programs\PHP\php.ini')

components/http_kernel.rst

@@ -67,7 +67,7 @@ that system::
             Request $request,
             int $type = self::MAIN_REQUEST,
             bool $catch = true
-        );
+        ): Response;
     }
 
 Internally, :method:`HttpKernel::handle() <Symfony\\Component\\HttpKernel\\HttpKernel::handle>` -

components/intl.rst

@@ -44,7 +44,7 @@ This component provides the following ICU data:
 Language and Script Names
 ~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The ``Languages`` class provides access to the name of all languages
+The :class:`Symfony\\Component\\Intl\\Languages` class provides access to the name of all languages
 according to the `ISO 639-1 alpha-2`_ list and the `ISO 639-2 alpha-3 (2T)`_ list::
 
     use Symfony\Component\Intl\Languages;
@@ -96,7 +96,7 @@ You may convert codes between two-letter alpha2 and three-letter alpha3 codes::
 
     $alpha2Code = Languages::getAlpha2Code($alpha3Code);
 
-The ``Scripts`` class provides access to the optional four-letter script code
+The :class:`Symfony\\Component\\Intl\\Scripts` class provides access to the optional four-letter script code
 that can follow the language code according to the `Unicode ISO 15924 Registry`_
 (e.g. ``HANS`` in ``zh_HANS`` for simplified Chinese and ``HANT`` in ``zh_HANT``
 for traditional Chinese)::

controller/error_pages.rst

@@ -220,7 +220,7 @@ contents, create a new Normalizer that supports the ``FlattenException`` input::
 
     class MyCustomProblemNormalizer implements NormalizerInterface
     {
-        public function normalize($exception, string $format = null, array $context = [])
+        public function normalize($exception, string $format = null, array $context = []): array
         {
             return [
                 'content' => 'This is my custom problem normalizer.',
@@ -231,7 +231,7 @@ contents, create a new Normalizer that supports the ``FlattenException`` input::
             ];
         }
 
-        public function supportsNormalization($data, string $format = null, array $context = [])
+        public function supportsNormalization($data, string $format = null, array $context = []): bool
         {
             return $data instanceof FlattenException;
         }