minor #21688 Further refactorings to PHPUnit namespaces (peterrehm)

This PR was squashed before being merged into the 2.7 branch (closes #21688).

Discussion
----------

Further refactorings to PHPUnit namespaces

| Q             | A
| ------------- | ---
| Branch?       | 2.7
| Bug fix?      | no
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | no
| Fixed tickets | -
| License       | MIT
| Doc PR        | -

Continued work to make Symfony PHPUnit 6 compatible

Commits
-------

de8106f Further refactorings to PHPUnit namespaces

Author: nicolas-grekas

Tests/Controller/ControllerResolverTest.php

@@ -141,7 +141,12 @@ public function testGetControllerInvokableServiceWithClassNameAsName()
      */
     public function testGetControllerOnNonUndefinedFunction($controller, $exceptionName = null, $exceptionMessage = null)
     {
-        $this->setExpectedException($exceptionName, $exceptionMessage);
+        if (method_exists($this, 'expectException')) {
+            $this->expectException($exceptionName);
+            $this->expectExceptionMessage($exceptionMessage);
+        } else {
+            $this->setExpectedException($exceptionName, $exceptionMessage);
+        }
 
         parent::testGetControllerOnNonUndefinedFunction($controller);
     }

Tests/DependencyInjection/Compiler/DataCollectorTranslatorPassTest.php

@@ -11,12 +11,13 @@
 
 namespace Symfony\Bundle\FrameworkBundle\Tests\DependencyInjection\Compiler;
 
+use PHPUnit\Framework\TestCase;
 use Symfony\Bundle\FrameworkBundle\DependencyInjection\Compiler\DataCollectorTranslatorPass;
 use Symfony\Component\DependencyInjection\ContainerBuilder;
 use Symfony\Component\DependencyInjection\Reference;
 use Symfony\Component\Translation\TranslatorInterface;
 
-class DataCollectorTranslatorPassTest extends \PHPUnit_Framework_TestCase
+class DataCollectorTranslatorPassTest extends TestCase
 {
     private $container;
     private $dataCollectorTranslatorPass;

Tests/DependencyInjection/Compiler/ProfilerPassTest.php

@@ -41,7 +41,7 @@ public function testTemplateNoIdThrowsException()
 
         $builder = $this->createContainerMock($services);
 
-        $this->setExpectedException('InvalidArgumentException');
+        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('InvalidArgumentException');
 
         $profilerPass = new ProfilerPass();
         $profilerPass->process($builder);

Tests/DependencyInjection/Compiler/SerializerPassTest.php

@@ -36,7 +36,7 @@ public function testThrowExceptionWhenNoNormalizers()
             ->with('serializer.normalizer')
             ->will($this->returnValue(array()));
 
-        $this->setExpectedException('RuntimeException');
+        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('RuntimeException');
 
         $serializerPass = new SerializerPass();
         $serializerPass->process($container);
@@ -63,7 +63,7 @@ public function testThrowExceptionWhenNoEncoders()
             ->method('getDefinition')
             ->will($this->returnValue($definition));
 
-        $this->setExpectedException('RuntimeException');
+        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('RuntimeException');
 
         $serializerPass = new SerializerPass();
         $serializerPass->process($container);

Tests/Translation/TranslatorTest.php

@@ -101,7 +101,7 @@ public function testTransWithCachingWithInvalidLocale()
         $translator = $this->getTranslator($loader, array('cache_dir' => $this->tmpDir), 'loader', '\Symfony\Bundle\FrameworkBundle\Tests\Translation\TranslatorWithInvalidLocale');
         $translator->setLocale('invalid locale');
 
-        $this->setExpectedException('\InvalidArgumentException');
+        $this->{method_exists($this, $_ = 'expectException') ? $_ : 'setExpectedException'}('\InvalidArgumentException');
         $translator->trans('foo');
     }