Added test to reproduce notice from anonymous classes

test/code/NodeVisitor/PHP4ConstructorVisitorTest.php

@@ -0,0 +1,30 @@
+<?php
+namespace code\NodeVisitor;
+
+use PHPUnit_Framework_TestCase;
+use Sstalle\php7cc\NodeVisitor\PHP4ConstructorVisitor;
+
+/**
+ * Unit test for the PHP4 constructor visitor
+ *
+ * @author Ron Rademaker
+ */
+class PHP4ConstructorVisitorTest extends PHPUnit_Framework_TestCase
+{
+    /**
+     * Test if an anonymous class is dealt with correctly
+     */
+    public function testAnonymousClassIsValid()
+    {
+        $visitor = new PHP4ConstructorVisitor();
+
+        $node = $this->getMockBuilder('PhpParser\Node\Stmt\Class_')
+            ->disableOriginalConstructor()
+            ->getMock();
+
+        // triggers a notice that it shouldn't
+        $visitor->enterNode($node);
+
+        $this->assertTrue(true);
+    }
+}