Description:
------------
Simply putting a dollar sign ($) with no variable name afterwards, and no semicolon does not cause any error.

Reproduce code:
---------------
Example 1 (Gives no error):
<?php
$a = $
$b = 1;
?>

Example 2
Notice: Undefined variable: b in /srv/test2/htdocs/phpbug.php on line 4
<?php
error_reporting(E_ALL | E_STRICT);
$a = $
$b = 1;
?>

Expected result:
----------------
Expected to see a parse error on line 2 of Example 1.  Wouldn't expect the parser to continue looking after a "$" for a variable name after a "\n".

Actual result:
--------------
No error in Example 1.  Incorrect error in Example 2.