minor symfony#16934 [PropertyInfo] Fix some namespaces in tests (dunglas)

This PR was merged into the 2.8 branch.

Discussion
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[PropertyInfo] Fix some namespaces in tests

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

Commits
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0660891 [PropertyInfo] Fix some namespaces in tests

Author: Tobion

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

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\PropertyInfo\PropertyInfo\Tests;
+namespace Symfony\Component\PropertyInfo\Tests;
 
 use Symfony\Component\PropertyInfo\PropertyInfoExtractor;
 use Symfony\Component\PropertyInfo\Tests\Fixtures\DummyExtractor;

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

@@ -9,7 +9,7 @@
  * file that was distributed with this source code.
  */
 
-namespace Symfony\Component\PropertyInfo\PropertyInfo\Tests;
+namespace Symfony\Component\PropertyInfo\Tests;
 
 use Symfony\Component\PropertyInfo\Type;