&new in lib

There is some very old code in lib/PEAR and lib/Varien/Pear that uses &new. This is removed from PHP 7, but we were never able to reproduce the crash in real life so it's not fixed by this extension. The only way we were able to reach the code was when compiling all code to opcache.

If you ever trigger this code in real use, please let us know!

If you are doing opcache compiling, workaround is simple - put these two folders into opcache blacklist (see opcache.blacklist_filename php.ini setting).