Description:
------------
I no-stat mode,the canonicalization code doesn't consider the currently executed 
filename when searching for relative paths.

I reported this bug before in this bug report - https://bugs.php.net/bug.php?
id=59749 but it wasn't really discussed, because there was a more serious 
problem 
there. 

I also know it has been discussed before and that you know about this 
problem(/feature), but not sure if a patch has been submitted. It would be nice 
if 
we get this committed as we have been porting patch from version to version of 
APC 
on WordPress.com where we run over 40 million WordPress sites and seems to work 
fine and might be useful to others. Converting paths to absolute isn't really a 
solution for everyone (us included) and obviously people want apc.canonicalize.


Test script:
---------------
apc.stat = 0

cat index.php 
<?php include_once("a/test.php"); ?>

cat a/test.php
<?php include_once('b/include1.php'); ?>


cat a/b/include1.php 
<?php include_once('include2.php'); ?>

cat a/include2.php 
<?php echo "Wrong file"; ?>

cat a/b/include2.php 
<?php echo "Correct file"; ?>

Expected result:
----------------
"Correct file"

Actual result:
--------------
On the first execution, I get "Correct file". On the second execution and after I 
get "Wrong file".