bug #31156 [FrameworkBundle] call method with Translator component on…

…ly (xabbuh)

This PR was merged into the 4.2 branch.

Discussion
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[FrameworkBundle] call method with Translator component only

| Q             | A
| ------------- | ---
| Branch?       | 4.2
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #31152
| License       | MIT
| Doc PR        |

Commits
-------

f49881d call method with Translator component only

src/Symfony/Bundle/FrameworkBundle/DependencyInjection/FrameworkExtension.php

@@ -95,6 +95,7 @@
 use Symfony\Component\Stopwatch\Stopwatch;
 use Symfony\Component\Translation\Command\XliffLintCommand as BaseXliffLintCommand;
 use Symfony\Component\Translation\Translator;
+use Symfony\Component\Translation\TranslatorInterface;
 use Symfony\Component\Validator\ConstraintValidatorInterface;
 use Symfony\Component\Validator\ObjectInitializerInterface;
 use Symfony\Component\Validator\Util\LegacyTranslatorProxy;
@@ -1108,7 +1109,7 @@ private function registerValidationConfiguration(array $config, ContainerBuilder
 
         $validatorBuilder = $container->getDefinition('validator.builder');
 
-        if (class_exists(LegacyTranslatorProxy::class)) {
+        if (interface_exists(TranslatorInterface::class) && class_exists(LegacyTranslatorProxy::class)) {
             $calls = $validatorBuilder->getMethodCalls();
             $calls[1] = ['setTranslator', [new Definition(LegacyTranslatorProxy::class, [new Reference('translator')])]];
             $validatorBuilder->setMethodCalls($calls);

src/Symfony/Bundle/FrameworkBundle/Tests/DependencyInjection/FrameworkExtensionTest.php

@@ -49,6 +49,7 @@
 use Symfony\Component\Serializer\Normalizer\JsonSerializableNormalizer;
 use Symfony\Component\Serializer\Serializer;
 use Symfony\Component\Translation\DependencyInjection\TranslatorPass;
+use Symfony\Component\Translation\TranslatorInterface;
 use Symfony\Component\Validator\DependencyInjection\AddConstraintValidatorsPass;
 use Symfony\Component\Validator\Util\LegacyTranslatorProxy;
 use Symfony\Component\Workflow;
@@ -819,7 +820,7 @@ public function testValidation()
         $this->assertSame('setConstraintValidatorFactory', $calls[0][0]);
         $this->assertEquals([new Reference('validator.validator_factory')], $calls[0][1]);
         $this->assertSame('setTranslator', $calls[1][0]);
-        if (class_exists(LegacyTranslatorProxy::class)) {
+        if (interface_exists(TranslatorInterface::class) && class_exists(LegacyTranslatorProxy::class)) {
             $this->assertEquals([new Definition(LegacyTranslatorProxy::class, [new Reference('translator')])], $calls[1][1]);
         } else {
             $this->assertEquals([new Reference('translator')], $calls[1][1]);