DQL Parser fails in select clause

$r = $em->createQuery('SELECT u, (((3))) as v FROM Entities\User u')->getResult();

PHP Fatal error:  Uncaught exception 'Doctrine\ORM\Query\QueryException' with message '[Syntax Error] line 0, col 10: Error: Expected known function, got '('' in /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/QueryException.php:42
Stack trace:
#0 /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/Parser.php(380): Doctrine\ORM\Query\QueryException::syntaxError('line 0, col 10:...')
#1 /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/Parser.php(3001): Doctrine\ORM\Query\Parser->syntaxError('known function', Array)
#2 /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/Parser.php(2975): Doctrine\ORM\Query\Parser->CustomFunctionDeclaration()
#3 /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/Parser.php(1907): Doctrine\ORM\Query\Parser->FunctionDeclaration()
#4 /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/Parser.php(1048): Doctrine\ORM\Query\Parser->SelectExp in /mnt/D/Jobs/Wanderwalter/htdocs/doctrineTest/doctrine2/lib/Doctrine/ORM/Query/QueryException.php on line 42