minor #17567 Change few occurences of a public setUp() method to protected (jakzal)

This PR was merged into the 2.8 branch.

Discussion
----------

Change few occurences of a public setUp() method to protected

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

#17566 for the 2.8 branch. Occurrences fixed in #17566 are not included here.

Commits
-------

0a883a9 Change few occurences of a public setUp() method to protected

src/Symfony/Bridge/Doctrine/Tests/PropertyInfo/DoctrineExtractorTest.php

@@ -26,7 +26,7 @@ class DoctrineExtractorTest extends \PHPUnit_Framework_TestCase
      */
     private $extractor;
 
-    public function setUp()
+    protected function setUp()
     {
         $config = Setup::createAnnotationMetadataConfiguration(array(__DIR__.DIRECTORY_SEPARATOR.'Fixtures'), true);
         $entityManager = EntityManager::create(array('driver' => 'pdo_sqlite'), $config);

src/Symfony/Bundle/FrameworkBundle/Tests/Routing/DelegatingLoaderTest.php

@@ -12,7 +12,7 @@ class DelegatingLoaderTest extends \PHPUnit_Framework_TestCase
     /** @var ControllerNameParser */
     private $controllerNameParser;
 
-    public function setUp()
+    protected function setUp()
     {
         $this->controllerNameParser = $this->getMockBuilder('Symfony\Bundle\FrameworkBundle\Controller\ControllerNameParser')
             ->disableOriginalConstructor()

src/Symfony/Component/PropertyInfo/Tests/Extractors/PhpDocExtractorTest.php

@@ -24,7 +24,7 @@ class PhpDocExtractorTest extends \PHPUnit_Framework_TestCase
      */
     private $extractor;
 
-    public function setUp()
+    protected function setUp()
     {
         $this->extractor = new PhpDocExtractor();
     }

src/Symfony/Component/PropertyInfo/Tests/Extractors/ReflectionExtractorTest.php

@@ -24,7 +24,7 @@ class ReflectionExtractorTest extends \PHPUnit_Framework_TestCase
      */
     private $extractor;
 
-    public function setUp()
+    protected function setUp()
     {
         $this->extractor = new ReflectionExtractor();
     }

src/Symfony/Component/PropertyInfo/Tests/Extractors/SerializerExtractorTest.php

@@ -26,7 +26,7 @@ class SerializerExtractorTest extends \PHPUnit_Framework_TestCase
      */
     private $extractor;
 
-    public function setUp()
+    protected function setUp()
     {
         $classMetadataFactory = new ClassMetadataFactory(new AnnotationLoader(new AnnotationReader()));
         $this->extractor = new SerializerExtractor($classMetadataFactory);

src/Symfony/Component/PropertyInfo/Tests/PropertyInfoExtractorTest.php

@@ -26,7 +26,7 @@ class PropertyInfoExtractorTest extends \PHPUnit_Framework_TestCase
      */
     private $propertyInfo;
 
-    public function setUp()
+    protected function setUp()
     {
         $extractors = array(new NullExtractor(), new DummyExtractor());
         $this->propertyInfo = new PropertyInfoExtractor($extractors, $extractors, $extractors, $extractors);