Symfony\Upgrade\Fixer\FormGetnameToGetblockprefixFixer::fix PHP Method

    public function fix(\SplFileInfo $file, $content)
    {
        $tokens = Tokens::fromCode($content);
        if ($this->isFormType($tokens)) {
            $this->fixGetNameMethod($tokens);
        }
        return $tokens->generateCode();
    }