Fix tests that use deprecated callable syntax

Author: derrabus

Tests/Console/Descriptor/AbstractDescriptorTest.php

@@ -208,11 +208,25 @@ public function testDescribeCallable($callable, $expectedDescription)
         $this->assertDescription($expectedDescription, $callable);
     }
 
-    public function getDescribeCallableTestData()
+    public function getDescribeCallableTestData(): array
     {
         return $this->getDescriptionTestData(ObjectsProvider::getCallables());
     }
 
+    /**
+     * @group legacy
+     * @dataProvider getDescribeDeprecatedCallableTestData
+     */
+    public function testDescribeDeprecatedCallable($callable, $expectedDescription)
+    {
+        $this->assertDescription($expectedDescription, $callable);
+    }
+
+    public function getDescribeDeprecatedCallableTestData(): array
+    {
+        return $this->getDescriptionTestData(ObjectsProvider::getDeprecatedCallables());
+    }
+
     /** @dataProvider getClassDescriptionTestData */
     public function testGetClassDescription($object, $expectedDescription)
     {

Tests/Console/Descriptor/ObjectsProvider.php

@@ -229,19 +229,25 @@ public static function getEventDispatchers()
         return ['event_dispatcher_1' => $eventDispatcher];
     }
 
-    public static function getCallables()
+    public static function getCallables(): array
     {
         return [
             'callable_1' => 'array_key_exists',
             'callable_2' => ['Symfony\\Bundle\\FrameworkBundle\\Tests\\Console\\Descriptor\\CallableClass', 'staticMethod'],
             'callable_3' => [new CallableClass(), 'method'],
             'callable_4' => 'Symfony\\Bundle\\FrameworkBundle\\Tests\\Console\\Descriptor\\CallableClass::staticMethod',
-            'callable_5' => ['Symfony\\Bundle\\FrameworkBundle\\Tests\\Console\\Descriptor\\ExtendedCallableClass', 'parent::staticMethod'],
             'callable_6' => function () { return 'Closure'; },
             'callable_7' => new CallableClass(),
             'callable_from_callable' => \Closure::fromCallable(new CallableClass()),
         ];
     }
+
+    public static function getDeprecatedCallables(): array
+    {
+        return [
+            'callable_5' => ['Symfony\\Bundle\\FrameworkBundle\\Tests\\Console\\Descriptor\\ExtendedCallableClass', 'parent::staticMethod'],
+        ];
+    }
 }
 
 class CallableClass