[perf] Skip reflection in MakeInheritedMethodVisibilitySameAsParentRector when no parent or no methods (#8580)

Author: TomasVotruba

rules/CodingStyle/Rector/ClassMethod/MakeInheritedMethodVisibilitySameAsParentRector.php

@@ -5,6 +5,7 @@
 namespace Rector\CodingStyle\Rector\ClassMethod;
 
 use PhpParser\Node;
+use PhpParser\Node\Name;
 use PhpParser\Node\Stmt\Class_;
 use PhpParser\Node\Stmt\ClassMethod;
 use PHPStan\Reflection\ClassReflection;
@@ -82,6 +83,15 @@ public function refactor(Node $node): ?Node
             return null;
         }
 
+        // no parent class to align visibility to
+        if (! $node->extends instanceof Name) {
+            return null;
+        }
+
+        if ($node->getMethods() === []) {
+            return null;
+        }
+
         $classReflection = $this->reflectionResolver->resolveClassReflection($node);
         if (! $classReflection instanceof ClassReflection) {
             return null;