Description:
------------
There seems to be no reason for this throwing an error, but if I try to 
instantiate an anonymous function that does not have any arguments then I get an 
'Parse error'.  This breaks a lot of closure functionality that could exist.

Test script:
---------------
$anonymous_function = function(){
    echo "hello world<br/>";
};

$anonymous_function();
$anonymous_function;

Expected result:
----------------
hello world
hello world

Actual result:
--------------
Parse error: syntax error, unexpected T_FUNCTION in /index.php(192) : eval()'d 
code on line 1