Merge branch '3.0' into 3.1

* 3.0:
  `@throws` annotations should go after `@return`
  Fix merge
  updated VERSION for 2.3.42
  update CONTRIBUTORS for 2.3.42
  updated CHANGELOG for 2.3.42
  Revert "bug #18908 [DependencyInjection] force enabling the external XML entity loaders (xabbuh)"
  Partial revert of previous PR
  [DependencyInjection] Skip deep reference check for 'service_container'
  Catch \Throwable
  [Serializer] Add missing @throws annotations
  Fix for #18843
  force enabling the external XML entity loaders
  Removed UTC specification with timestamp

Conflicts:
	src/Symfony/Component/Yaml/Tests/InlineTest.php

Author: nicolas-grekas

Extractor/AbstractFileExtractor.php

@@ -54,9 +54,9 @@ private function toSplFileInfo($file)
     /**
      * @param string $file
      *
-     * @throws \InvalidArgumentException
-     *
      * @return bool
+     *
+     * @throws \InvalidArgumentException
      */
     protected function isFile($file)
     {

Loader/XliffFileLoader.php

@@ -165,6 +165,8 @@ private function utf8ToCharset($content, $encoding = null)
     }
 
     /**
+     * Validates and parses the given file into a DOMDocument.
+     *
      * @param string       $file
      * @param \DOMDocument $dom
      * @param string       $schema source of the schema

TranslatorBagInterface.php

@@ -23,9 +23,9 @@ interface TranslatorBagInterface
      *
      * @param string|null $locale The locale or null to use the default
      *
-     * @throws \InvalidArgumentException If the locale contains invalid characters
-     *
      * @return MessageCatalogueInterface
+     *
+     * @throws \InvalidArgumentException If the locale contains invalid characters
      */
     public function getCatalogue($locale = null);
 }

TranslatorInterface.php

@@ -26,9 +26,9 @@ interface TranslatorInterface
      * @param string|null $domain     The domain for the message or null to use the default
      * @param string|null $locale     The locale or null to use the default
      *
-     * @throws \InvalidArgumentException If the locale contains invalid characters
-     *
      * @return string The translated string
+     *
+     * @throws \InvalidArgumentException If the locale contains invalid characters
      */
     public function trans($id, array $parameters = array(), $domain = null, $locale = null);
 
@@ -41,9 +41,9 @@ public function trans($id, array $parameters = array(), $domain = null, $locale
      * @param string|null $domain     The domain for the message or null to use the default
      * @param string|null $locale     The locale or null to use the default
      *
-     * @throws \InvalidArgumentException If the locale contains invalid characters
-     *
      * @return string The translated string
+     *
+     * @throws \InvalidArgumentException If the locale contains invalid characters
      */
     public function transChoice($id, $number, array $parameters = array(), $domain = null, $locale = null);