AC-663: Create phpcs static check for ClassesTest::testPhpCode

Author: svera

Magento2/Sniffs/Legacy/ClassReferencesInConfigurationFilesSniff.php

@@ -74,7 +74,7 @@ private function assertNonFactoryName(File $phpcsFile, array $elements)
             if (preg_match('/^([A-Z][a-z\d\\\\]+)+$/', $element->value) !== 1) {
                 $phpcsFile->addError(
                     self::ERROR_MESSAGE_CONFIG,
-                    $element->element->getLineNo() - 1,
+                    $element->lineNumber - 1,
                     self::ERROR_CODE_CONFIG,
                 );
             }
@@ -93,7 +93,7 @@ private function assertNonFactoryNameModule(File $phpcsFile, array $classes)
             if (preg_match('/^([A-Z][A-Za-z\d_]+)+$/', $element->value) !== 1) {
                 $phpcsFile->addError(
                     self::ERROR_MESSAGE_MODULE,
-                    $element->element->getLineNo() - 1,
+                    $element->lineNumber - 1,
                     self::ERROR_CODE_MODULE,
                 );
             }

Magento2/Sniffs/Legacy/ExtendedNode.php

@@ -6,7 +6,6 @@
 
 namespace Magento2\Sniffs\Legacy;
 
-use DOMElement;
 use SimpleXMLElement;
 
 class ExtendedNode
@@ -17,9 +16,9 @@ class ExtendedNode
     public $value;
 
     /**
-     * @var DOMElement
+     * @var int
      */
-    public $element;
+    public $lineNumber;
 
     /**
      * @param string $value
@@ -28,6 +27,6 @@ class ExtendedNode
     public function __construct(string $value, SimpleXMLElement $element)
     {
         $this->value = $value;
-        $this->element = dom_import_simplexml($element);
+        $this->lineNumber = dom_import_simplexml($element)->getLineNo();
     }
 }