Description:
------------
When using an indexer on a return value of a function, the    
compiler returns an error:    
    
parse error, unexpected '['    
    
I would expect it to compile as it would be a valid    
expression. 

Reproduce code:
---------------
Does not compile:
<?php
print test()['test'];
function test() {
        return array('test'=>1);
}
?>

Does compile:
<?php
$tmp = test(); print $tmp['test'];
function test() {
        return array('test'=>1);
}
?>

Expected result:
----------------
 

Actual result:
--------------
PHP Parse error:  parse error, unexpected '[' in test.php 
on line 2