Merge branch '4.3' into 4.4

* 4.3:
  Fix assertInternalType deprecation in phpunit 9
  Ensure signatures for setUp|tearDown|setUpAfterClass|tearDownAfterClass methods in tests are compatible with phpunit 8.2

Author: nicolas-grekas

Tests/CurrenciesTest.php

@@ -11,13 +11,16 @@
 
 namespace Symfony\Component\Intl\Tests;
 
+use Symfony\Bridge\PhpUnit\ForwardCompatTestTrait;
 use Symfony\Component\Intl\Currencies;
 
 /**
  * @group intl-data
  */
 class CurrenciesTest extends ResourceBundleTestCase
 {
+    use ForwardCompatTestTrait;
+
     // The below arrays document the state of the ICU data bundled with this package.
 
     private static $currencies = [
@@ -693,7 +696,7 @@ public function testGetFractionDigits($currency)
      */
     public function testGetRoundingIncrement($currency)
     {
-        $this->assertInternalType('numeric', Currencies::getRoundingIncrement($currency));
+        $this->assertIsNumeric(Currencies::getRoundingIncrement($currency));
     }
 
     public function provideCurrenciesWithNumericEquivalent()

Tests/ResourceBundleTestCase.php

@@ -696,7 +696,7 @@ abstract class ResourceBundleTestCase extends TestCase
 
     private static $rootLocales;
 
-    protected function setUp()
+    protected function setUp(): void
     {
         Locale::setDefault('en');
         Locale::setDefaultFallback('en');