String values from return statements are not scoped properly

[theofidry]

Bug report

Question	Answer
Box version	3.3.0
PHP version	0.11.3

Example:

private function getReadlineClass()
    {
        if ($this->useReadline()) {
            if (\_HumbugBox4a1434feb5ef\Psy\Readline\GNUReadline::isSupported()) {
                return 'Psy\\Readline\\GNUReadline';
            } elseif (\_HumbugBox4a1434feb5ef\Psy\Readline\Libedit::isSupported()) {
                return 'Psy\\Readline\\Libedit';
            } elseif (\_HumbugBox4a1434feb5ef\Psy\Readline\HoaConsole::isSupported()) {
                return 'Psy\\Readline\\HoaConsole';
            }
        }
        return 'Psy\\Readline\\Transient';
    }