Merge branch '6.2' into 6.3

* 6.2:
  Avoid call on null
  [Notifier] Document Firebase options object in readme
  [ErrorHandler] Fix sending Vary header with SerializerErrorRenderer
  Fix intl data tests
  Improve the description of the Intl component
  [DoctrineBridge] fix issue with missing stopwatch events
  [HttpClient] Fix canceling MockResponse

Author: nicolas-grekas

README.md

@@ -1,11 +1,7 @@
 Intl Component
 =============
 
-The Intl component provides a PHP replacement layer for the C intl extension
-that also provides access to the localization data of the ICU library.
-
-The replacement layer is limited to the locale "en". If you want to use other
-locales, you should [install the intl PHP extension][0] instead.
+The Intl component provides access to the localization data of the ICU library.
 
 Resources
 ---------
@@ -15,7 +11,3 @@ Resources
  * [Report issues](https://github.com/symfony/symfony/issues) and
    [send Pull Requests](https://github.com/symfony/symfony/pulls)
    in the [main Symfony repository](https://github.com/symfony/symfony)
- * [Docker images with intl support](https://hub.docker.com/r/jakzal/php-intl)
-   (for the Intl component development)
-
-[0]: https://php.net/intl.setup

Tests/CurrenciesTest.php

@@ -736,7 +736,7 @@ public function testGetNumericCodeFailsIfNoNumericEquivalent($currency)
 
     public static function provideValidNumericCodes()
     {
-        $numericToAlpha3 = $this->getNumericToAlpha3Mapping();
+        $numericToAlpha3 = self::getNumericToAlpha3Mapping();
 
         return array_map(
             fn ($numeric, $alpha3) => [$numeric, $alpha3],
@@ -761,7 +761,7 @@ public function testForNumericCode($numeric, $expected)
 
     public static function provideInvalidNumericCodes()
     {
-        $validNumericCodes = array_keys($this->getNumericToAlpha3Mapping());
+        $validNumericCodes = array_keys(self::getNumericToAlpha3Mapping());
         $invalidNumericCodes = array_diff(range(0, 1000), $validNumericCodes);
 
         return array_map(
@@ -791,7 +791,7 @@ public function testExists()
         $this->assertFalse(Currencies::exists('XXX'));
     }
 
-    private function getNumericToAlpha3Mapping()
+    private static function getNumericToAlpha3Mapping()
     {
         $numericToAlpha3 = [];
 

composer.json

@@ -1,7 +1,7 @@
 {
     "name": "symfony/intl",
     "type": "library",
-    "description": "Provides a PHP replacement layer for the C intl extension that includes additional data from the ICU library",
+    "description": "Provides access to the localization data of the ICU library",
     "keywords": ["intl", "icu", "internationalization", "localization", "i18n", "l10n"],
     "homepage": "https://symfony.com",
     "license": "MIT",