Description:
------------
Basically a duplicate of #31304, but it seems I can't reopen the ticket 
myself since I'm not a dev nor the original poster.

When an exception is thrown in a destructor, the exception is lost, and 
a pointless Fatal Error is issued:
Fatal Error: Exception thrown without a stack trace

debug_backtrace() will still get you a stack trace from a destructor 
without issuing any error, let alone causing the loss of debugging data. 
Also, only wrapping the exception in a try-catch inside the destructor 
works, and allows you to just print the exception and exit as if 
exceptions really worked in destructors.

Why spit out the Fatal Error?

Reproduce code:
---------------
<?php
class ExceptionThrower
{
	public function __destruct()
	{
		throw new Exception;
	}
}
$obj = new ExceptionThrower;
?>


Expected result:
----------------
Fatal error: Uncaught exception 'Exception' in snippet.php:6
Stack trace:
#0 [internal function]: ExceptionThrower->__destruct()
#1 {main}
  thrown in snippet.php on line 6






Actual result:
--------------
Fatal error: Exception thrown without a stack frame in Unknown on line 0