Description:
------------
is_link seems to return false for junction points which show up as <JUNCTION> when using the DIR command.
It seems to work for junctions which show up as <SYMLINKD> when using the DIR command.

tested on php 5.3.27 and 5.4.14 (32 bit of course)

Test script:
---------------
<?php

$paths = array(
  "linksource",
  "linktarget",
  "linktarget2"
);

foreach ( $paths as $path )
{
  echo "----\n $path\n";
  var_dump( is_link( $path ) );
  var_dump( is_dir( $path ) );
  var_dump( array_diff( stat($path), lstat($path) ) );
}

Expected result:
----------------
results of DIR command:

07/09/2013  15:59    <DIR>          linksource
07/09/2013  19:11    <JUNCTION>     linktarget [D:\htdocs\linksource]
18/09/2013  14:30    <SYMLINKD>     linktarget2 [linksource]

Actual result:
--------------
D:\htdocs>php linktest.php
----
 linksource
bool(false)
bool(true)
array(0) {
}
----
 linktarget
bool(false)
bool(true)
array(8) {
  [2]=>
  int(16895)
  [8]=>
  int(1378562389)
  [9]=>
  int(1378562389)
  [10]=>
  int(1378562389)
  ["mode"]=>
  int(16895)
  ["atime"]=>
  int(1378562389)
  ["mtime"]=>
  int(1378562389)
  ["ctime"]=>
  int(1378562389)
}
----
 linktarget2
bool(true)
bool(true)
array(8) {
  [2]=>
  int(16895)
  [8]=>
  int(1378562389)
  [9]=>
  int(1378562389)
  [10]=>
  int(1378562389)
  ["mode"]=>
  int(16895)
  ["atime"]=>
  int(1378562389)
  ["mtime"]=>
  int(1378562389)
  ["ctime"]=>
  int(1378562389)
}