Description:
------------
It seems that there are some cases, when you can't catch Exceptions with exception_handler which was thrown from error_handler for some errors.

For example if you do this:

$class = new StdClass;
echo $class->$foo;
error_handler gets called, ErrorException was thrown, but the Exception wasn't catched with the exception_handler.

if you try 
echo $foo;
instead of
echo $class->$foo;
then the "same" error gets called with the error handler (by same error, I mean same parameters), but the Exception thrown in this case is successfuly catched by the exception handler.

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

error_reporting(E_ALL);
ini_set('display_errors', 0);

function debug($s){
	echo "<pre>";
	var_dump($s);
	echo "</pre>";
}

set_error_handler(
	function ($errno, $errstr, $errfile, $errline ) {
		debug('error_handler');
		debug(array(
			'errno'		=>	$errno,
			'errstr'	=>	$errstr,
			'errfile'	=>	$errfile,
			'errline'	=>	$errline,
		));
		throw new ErrorException($errstr, 0, $errno, $errfile, $errline);
	}
);

set_exception_handler(
	function(Exception $e){
		debug('exception_handler');
		debug($e);
	}
);

$class = new StdClass;
echo $class->$foo;

echo 'done';

Expected result:
----------------
string(13) "error_handler"

array(4) {
  ["errno"]=>
  int(8)
  ["errstr"]=>
  string(23) "Undefined variable: foo"
  ["errfile"]=>
  string(55) "C:\work\xampp_vc9\htdocs\default\bug\error_handling.php"
  ["errline"]=>
  int(46)
}

string(17) "exception_handler"

object(ErrorException)#4 (8) {
  ["message":protected]=>
  string(23) "Undefined variable: foo"
...

Actual result:
--------------
string(13) "error_handler"

array(4) {
  ["errno"]=>
  int(8)
  ["errstr"]=>
  string(23) "Undefined variable: foo"
  ["errfile"]=>
  string(55) "C:\work\xampp_vc9\htdocs\default\bug\error_handling.php"
  ["errline"]=>
  int(46)
}