Description:
------------
If spl_autoload_register() is called from class method, SPL autoloader can use private and protected methods, although SPL is not a part of this class. It works well if spl_autoload_register() is called from somewhere else.

Test script:
---------------
<?php
	class CallbackTest {
		public function __construct() {
			spl_autoload_register(array($this, 'publicCallback'));
			spl_autoload_register(array($this, 'protectedCallback'));
			spl_autoload_register(array($this, 'privateCallback'));
		}
		public function publicCallback($className) {
			echo __METHOD__, "\n";
		}
		protected function protectedCallback($className) {
			echo __METHOD__, "\n";
		}
		private function privateCallback($className) {
			echo __METHOD__, "\n";
		}
	}
	new CallbackTest();
	new AutoloadTest();


Expected result:
----------------
PHP Fatal error:  Uncaught exception 'LogicException' with message 'Passed array does not specify a callable method (cannot access protected method CallbackTest::protectedCallback())' in /home/binary/test.php:5
Stack trace:
#0 test.php(5): spl_autoload_register(Array)
#1 test.php(18): CallbackTest->__construct()
#2 {main}
  thrown in test.php on line 5

Actual result:
--------------
CallbackTest::publicCallback
CallbackTest::protectedCallback
CallbackTest::privateCallback
PHP Fatal error:  Class 'AutoloadTest' not found in test.php on line 19