#18140 introduced a ConsoleErrorEvent to replace the exception event, catching both errors and exceptions in Application.

Problem

We lost all the benefit of using the Debug component along with the Console one (using the fullstack framework included): the DebugHandlersListener is no more reached, making the following code useless https://github.com/symfony/symfony/blob/master/src/Symfony/Component/HttpKernel/EventListener/DebugHandlersListener.php#L107-L116
Also, any custom error handler in userland will no more be called.

Example using the fullstack

public function execute(InputInterface $input, OutputInterface $output) 
{
    $this->foo();
}

public function fooo() 
{
}

Before 3.3

After

Possible solutions

Dunno yet. We definitely need a way to give errors to the error handler if any.

/cc @ogizanagi who reported the issue in #20808 (comment) which hasn't received any answer at the moment.