Replace accidental long-array usage.

src/Plugin/Field/FieldType/CountryItem.php

@@ -27,7 +27,7 @@ class CountryItem extends FieldItemBase {
    * {@inheritdoc}
    */
   public static function schema(FieldStorageDefinitionInterface $field_definition) {
-    return array(
+    return [
       'columns' => [
         'value' => [
           'type' => 'char',
@@ -38,7 +38,7 @@ class CountryItem extends FieldItemBase {
       'indexes' => [
         'value' => ['value'],
       ],
-    );
+    ];
   }
 
   /**

tests/src/FunctionalJavascript/AddressDefaultWidgetTest.php

@@ -501,9 +501,9 @@ class AddressDefaultWidgetTest extends JavascriptTestBase {
    *   will be displayed.
    */
   protected function assertOptionSelected($id, $option, $message = '') {
-    $elements = $this->xpath('//select[@name=:id]//option[@value=:option]', array(':id' => $id, ':option' => $option));
+    $elements = $this->xpath('//select[@name=:id]//option[@value=:option]', [':id' => $id, ':option' => $option]);
     foreach ($elements as $element) {
-      $this->assertNotEmpty($element->isSelected(), $message ? $message : new FormattableMarkup('Option @option for field @id is selected.', array('@option' => $option, '@id' => $id)));
+      $this->assertNotEmpty($element->isSelected(), $message ? $message : new FormattableMarkup('Option @option for field @id is selected.', ['@option' => $option, '@id' => $id]));
     }
   }