minor symfony#40913 [Translation] Move ProviderFactoryTestCase out of the Tests namespace (derrabus)

This PR was merged into the 5.3-dev branch.

Discussion
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[Translation] Move ProviderFactoryTestCase out of the Tests namespace

| Q             | A
| ------------- | ---
| Branch?       | 5.3
| Bug fix?      | yes
| New feature?  | no
| Deprecations? | no
| Tickets       | N/A
| License       | MIT
| Doc PR        | N/A

Same as symfony#40911, different class. Sorry, I missed the seconds abstract class. 🙈

Commits
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e01499d [Translation] Move ProviderFactoryTestCase out of the Tests namespace

Author: nicolas-grekas

src/Symfony/Component/Translation/Bridge/Loco/Tests/LocoProviderFactoryTest.php

@@ -4,7 +4,7 @@
 
 use Symfony\Component\Translation\Bridge\Loco\Provider\LocoProviderFactory;
 use Symfony\Component\Translation\Provider\ProviderFactoryInterface;
-use Symfony\Component\Translation\Tests\ProviderFactoryTestCase;
+use Symfony\Component\Translation\Test\ProviderFactoryTestCase;
 
 class LocoProviderFactoryTest extends ProviderFactoryTestCase
 {

src/Symfony/Component/Translation/Tests/ProviderFactoryTestCase.php renamed to src/Symfony/Component/Translation/Test/ProviderFactoryTestCase.php

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\Translation\Tests;
+namespace Symfony\Component\Translation\Test;
 
 use PHPUnit\Framework\TestCase;
 use Psr\Log\LoggerInterface;
@@ -26,6 +26,8 @@
  * A test case to ease testing a translation provider factory.
  *
  * @author Mathieu Santostefano <[email protected]>
+ *
+ * @internal
  */
 abstract class ProviderFactoryTestCase extends TestCase
 {