symfony
diff --git a/‎src/Symfony/Component/Form/Extension/Core/ChoiceList/ChoiceList.php
Lines changed: 2 additions & 2 deletions b/‎src/Symfony/Component/Form/Extension/Core/ChoiceList/ChoiceList.php
Lines changed: 2 additions & 2 deletions
@@ -11,7 +11,7 @@
 
 namespace Symfony\Component\Form\Extension\Core\ChoiceList;
 
-use Symfony\Component\Form\Form;
+use Symfony\Component\Form\FormConfig;
 use Symfony\Component\Form\Exception\UnexpectedTypeException;
 use Symfony\Component\Form\Exception\InvalidConfigurationException;
 use Symfony\Component\Form\Extension\Core\View\ChoiceView;
@@ -335,7 +335,7 @@ protected function addChoice(&$bucketForPreferred, &$bucketForRemaining, $choice
     {
         $index = $this->createIndex($choice);
 
-        if ('' === $index || null === $index || !Form::isValidName((string)$index)) {
+        if ('' === $index || null === $index || !FormConfig::isValidName((string)$index)) {
             throw new InvalidConfigurationException('The index "' . $index . '" created by the choice list is invalid. It should be a valid, non-empty Form name.');
         }
Original file line number	Diff line number	Diff line change
`@@ -11,7 +11,7 @@`
`11`	`11`
`12`	`12`	`namespace Symfony\Component\Form\Extension\Core\ChoiceList;`
`13`	`13`
`14`		`-use Symfony\Component\Form\Form;`
	`14`	`+use Symfony\Component\Form\FormConfig;`
`15`	`15`	`use Symfony\Component\Form\Exception\UnexpectedTypeException;`
`16`	`16`	`use Symfony\Component\Form\Exception\InvalidConfigurationException;`
`17`	`17`	`use Symfony\Component\Form\Extension\Core\View\ChoiceView;`
`@@ -335,7 +335,7 @@ protected function addChoice(&$bucketForPreferred, &$bucketForRemaining, $choice`
`335`	`335`	`{`
`336`	`336`	`$index = $this->createIndex($choice);`
`337`	`337`
`338`		`- if ('' === $index \|\| null === $index \|\| !Form::isValidName((string)$index)) {`
	`338`	`+ if ('' === $index \|\| null === $index \|\| !FormConfig::isValidName((string)$index)) {`
`339`	`339`	`throw new InvalidConfigurationException('The index "' . $index . '" created by the choice list is invalid. It should be a valid, non-empty Form name.');`
`340`	`340`	`}`
`341`	`341`