Throwable::addSuppressed()

Hi PHP

So I read that there's this Throwable interface coming. Great! How about
extending it with one further method:

void Throwable::addSuppressed(Throwable exception)

Semantic is the same as Java's Throwable.addSuppressed()¹.

Why? Well consider a code fragment which wants to close a resource
during an exception:

} catch (Exception $e1) {
try {
$resource->close();
throw $e1;

} catch (ResourceException $e2) {
    // The information about $e2 is lost.
    throw $e1;
}

}

Currently PHP has no method to propagate both $e1 and $e2. With
Throwable::addSuppressed() $e2 could be added as a suppressed exception
to $e1:

} catch (Exception $e1) {
try {
$resource->close();

} catch (ResourceException $e2) {
    e1->addSuppressed($e2);

}
throw $e1;

}

To make this information useful (for e.g. a logger) there's one further
method needed:

Throwable[] Throwable::getSuppressed()

So PHP, what do you think, might a RFC find acceptance?

Best wishes
Markus Malkusch