TLSWrap object keeps a pointer reference to the underlying
TCPWrap object. This TCPWrap object could be closed and deleted
by the event-loop which leaves us with a dangling pointer.
So the TLSWrap object needs to track the "close" event on the
TCPWrap object.
PR-URL: https://github.com/nodejs/node/pull/11776
Reviewed-By: Fedor Indutny <fedor.indutny@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Brian White <mscdex@mscdex.net>
4cdb0e89d8