Exceptions thrown during yield operation fall through the generator instead of being handled within

Description

The following code:

<?php

set_error_handler(function() { throw new \Error(); });

function &gen() {
    try {
        yield 1;
    } catch (Error $e) {
        print "Caught";
    }
}

foreach (gen() as $y);

Resulted in Uncaught Error

But I expected this output instead:

Caught

return_by_ref has the same problem, it seems to me, however in generators there's the additional case of exceptions in destructors of previous key and values.

I wouldn't change the longstanding behaviour in current PHP versions, but should be fixed for PHP 8.2 possibly, for academical correctness at least.

PHP Version

master

Operating System

No response

Reproduce the provided generator example on PHP master and compare the observed error flow with the expected catch behavior. Then inspect generator yield handling, return-by-reference behavior, and the noted destructor cases. Done means the intended exception handling is defined and covered for the reported scenarios without changing established behavior unintentionally.