MAGETWO-69056: var_dump in \Magento\Catalog\Controller\Adminhtml\Category\Save

Author: Sergii Kovalenko

dev/tests/static/testsuite/Magento/Test/Legacy/_files/obsolete_methods.php

@@ -2521,5 +2521,5 @@
     ['getDataFormTab', 'Magento\Backend\Test\Block\Widget\Tab', 'Magento\Ui\Test\Block\Adminhtml\AbstractContainer::getFieldsData'],
     ['getBunchImages', 'Magento\CatalogImportExport\Model\Import\Product'],
     ['_isAttributeValueEmpty', 'Magento\Catalog\Model\ResourceModel\AbstractResource'],
-    ['var_dump']
+    ['var_dump', '']
 ];