chore: fix phpcs + nikic/php-parser@4 compatibility

Author: qkdreyer

Diff for: Tests/Translation/Extractor/File/Fixture/MyFormType.php

@@ -68,5 +68,5 @@ public function buildForm(FormBuilderInterface $builder, array $options)
         ]);
     }
 
-    const CHOICES = ['choices' => [null]];
+    public const CHOICES = ['choices' => [null]];
 }

Diff for: Translation/Extractor/File/FormExtractor.php

@@ -244,7 +244,7 @@ protected function parseChoiceNode(Node $item, Node $node, $domain)
         foreach ($item->value->items as $index => $subItem) {
             $newItem = clone $subItem;
             $newItem->key = $subItem->value;
-            $newItem->value = $subItem->key ?? new Node\Scalar\Int_($index);
+            $newItem->value = $subItem->key ?? new Node\Scalar\LNumber($index);
             $subItem = $newItem;
             $this->parseItem($subItem, $domain);
         }