MAGETWO-32134: Build stabilization

Author: Stanislav Idolov

app/code/Magento/Catalog/Api/Data/ProductAttributeDataBuilder.php

@@ -237,6 +237,16 @@ public function setFrontendInput($frontendInput)
         return $this;
     }
 
+    /**
+     * @param string|null $entityTypeId
+     * @return $this
+     */
+    public function setEntityTypeId($entityTypeId)
+    {
+        $this->_set('entity_type_id', $entityTypeId);
+        return $this;
+    }
+
     /**
      * @param bool $isRequired
      * @return $this