CI 2 ignores core folder.

[eluser]dardar[/eluser]
I recently upgraded from 1.7.2.
I've moved my MY_Profiler.php to /core/ folder, but it just ignores /application/core folder.
If I move back this file to libraries, I'm getting error:

Code:

Fatal error: Call to undefined method CI_Profiler::ci_profiler() in C:\www\epg\application\libraries\MY_Profiler.php on line 13

My code looks like:

Code:

class MY_Profiler extends CI_Profiler {

    function __construct($config = array())
    {
        //add your needed sections to the _available_sections array here
        $this->_available_sections[] = 'mysection';
        $this->_available_sections[] = 'session';
        parent::CI_Profiler($config);
    }

this 13 line:

Code:

parent::CI_Profiler($config);