MAGETWO-48248: [GitHub] Prefix field has wrong type on Checkout #3083

CR fixes

Author: Serhiy Shkolyarenko

app/code/Magento/Checkout/Block/Checkout/LayoutProcessor.php

@@ -83,13 +83,13 @@ private function getAddressAttributes()
     }
 
     /**
-     * Convert prefix and suffix from inputs to selects when necessary
+     * Convert elements(like prefix and suffix) from inputs to selects when necessary
      *
      * @param array $elements address attributes
      * @param array $attributesToConvert fields and their callbacks
      * @return array
      */
-    private function convertPrefixSuffix($elements, $attributesToConvert)
+    private function convertElementsToSelect($elements, $attributesToConvert)
     {
         $codes = array_keys($attributesToConvert);
         foreach (array_keys($elements) as $code) {
@@ -128,7 +128,7 @@ public function process($jsLayout)
         ];
 
         $elements = $this->getAddressAttributes();
-        $elements = $this->convertPrefixSuffix($elements, $attributesToConvert);
+        $elements = $this->convertElementsToSelect($elements, $attributesToConvert);
         // The following code is a workaround for custom address attributes
         if (isset($jsLayout['components']['checkout']['children']['steps']['children']['billing-step']['children']
             ['payment']['children']