minor symfony#54361 [PropertyInfo] add test using deprecated reflection doc block feature to legacy group (xabbuh)

This PR was merged into the 5.4 branch.

Discussion
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[PropertyInfo] add test using deprecated reflection doc block feature to legacy group

| Q             | A
| ------------- | ---
| Branch?       | 5.4
| Bug fix?      | no
| New feature?  | no
| Deprecations? | no
| Issues        |
| License       | MIT

see phpDocumentor/ReflectionDocBlock#360

Commits
-------

ab92485 add test using deprecated reflection doc block feature to legacy group

Author: xabbuh

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

@@ -58,7 +58,6 @@ public static function invalidTypesProvider()
         return [
             'pub' => ['pub', null, null],
             'stat' => ['stat', null, null],
-            'foo' => ['foo', self::isPhpDocumentorV5() ? 'Foo.' : null, null],
             'bar' => ['bar', self::isPhpDocumentorV5() ? 'Bar.' : null, null],
         ];
     }
@@ -73,6 +72,16 @@ public function testInvalid($property, $shortDescription, $longDescription)
         $this->assertSame($longDescription, $this->extractor->getLongDescription('Symfony\Component\PropertyInfo\Tests\Fixtures\InvalidDummy', $property));
     }
 
+    /**
+     * @group legacy
+     */
+    public function testEmptyParamAnnotation()
+    {
+        $this->assertNull($this->extractor->getTypes('Symfony\Component\PropertyInfo\Tests\Fixtures\InvalidDummy', 'foo'));
+        $this->assertSame(self::isPhpDocumentorV5() ? 'Foo.' : null, $this->extractor->getShortDescription('Symfony\Component\PropertyInfo\Tests\Fixtures\InvalidDummy', 'foo'));
+        $this->assertNull($this->extractor->getLongDescription('Symfony\Component\PropertyInfo\Tests\Fixtures\InvalidDummy', 'foo'));
+    }
+
     /**
      * @dataProvider typesWithNoPrefixesProvider
      */