DowngradeTo74: Fix rector rule if ReflectionClass is nullable

rules-tests/DowngradePhp80/Rector/MethodCall/DowngradeReflectionGetAttributesRector/Fixture/class_is_nullable.php.inc

@@ -0,0 +1,35 @@
+<?php
+
+namespace Rector\Tests\DowngradePhp80\Rector\MethodCall\DowngradeReflectionGetAttributesRector\Fixture;
+
+class SomeClass
+{
+    public function run(?\ReflectionClass $reflectionClass)
+    {
+        if ($reflectionClass->getAttributes('SomeAttribute')[0] ?? null) {
+            return true;
+        }
+
+        return false;
+    }
+}
+
+?>
+-----
+<?php
+
+namespace Rector\Tests\DowngradePhp80\Rector\MethodCall\DowngradeReflectionGetAttributesRector\Fixture;
+
+class SomeClass
+{
+    public function run(?\ReflectionClass $reflectionClass)
+    {
+        if ((method_exists($reflectionClass, 'getAttributes') ? $reflectionClass->getAttributes('SomeAttribute') : [])[0] ?? null) {
+            return true;
+        }
+
+        return false;
+    }
+}
+
+?>

rules/DowngradePhp80/Rector/MethodCall/DowngradeReflectionGetAttributesRector.php

@@ -80,7 +80,10 @@ public function refactor(Node $node): Ternary|null|int
             return null;
         }
 
-        if (! $this->isObjectType($node->var, new ObjectType('Reflector'))) {
+        if (
+            ! $this->isObjectType($node->var, new ObjectType('Reflector'))
+            && ! $this->isObjectType($node->var, new ObjectType('ReflectionClass'))
+        ) {
             return null;
         }