try to fix tests

baseline.xml

@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<files psalm-version="5.18.0@b113f3ed0259fd6e212d87c3df80eec95a6abf19">
+<files psalm-version="5.19.0@06b71be009a6bd6d81b9811855d6629b9fe90e1b">
   <file src="src/Aggregate/AggregateRootBehaviour.php">
     <UnsafeInstantiation>
       <code>new static()</code>
@@ -15,6 +15,11 @@
       <code>class DoctrineHelper</code>
     </ClassNotFinal>
   </file>
+  <file src="src/EventBus/AttributeListenerProvider.php">
+    <MixedMethodCall>
+      <code><![CDATA[$method->getName()]]></code>
+    </MixedMethodCall>
+  </file>
   <file src="src/EventBus/Message.php">
     <InvalidReturnStatement>
       <code>$headers</code>

src/EventBus/ListenerDescriptor.php

@@ -7,6 +7,8 @@
 use Closure;
 use ReflectionFunction;
 
+use function method_exists;
+
 final class ListenerDescriptor
 {
     private readonly Closure $callable;
@@ -20,15 +22,23 @@ public function __construct(callable $callable)
 
         $r = new ReflectionFunction($callable);
 
-        if ($r->isAnonymous()) {
+        if (method_exists($r, 'isAnonymous') && $r->isAnonymous()) {
             $this->name = 'Closure';
-        } elseif (!$callable = $r->getClosureThis()) {
+
+            return;
+        }
+
+        $callable = $r->getClosureThis();
+
+        if (!$callable) {
             $class = $r->getClosureCalledClass();
 
             $this->name = ($class ? $class->name . '::' : '') . $r->name;
-        } else {
-            $this->name = $callable::class . '::' . $r->name;
+
+            return;
         }
+
+        $this->name = $callable::class . '::' . $r->name;
     }
 
     public function name(): string