tls: use parent handle's close callback

tls: use parent handle's close callback

When closing the child TLSWrap handle - wait for the proper parent's
handle close callback invocation. `uv_close_cb` may be invoked much
later than the next libuv tick, depending on the platform.

The only platform that currently seem to defer `uv_close_cb` is Windows
XP. This behavior was not observed on other Windows systems, and is not
possible on Unixes.

Fix: https://github.com/nodejs/node/issues/2979
PR-URL: https://github.com/nodejs/node/pull/2991
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Ben Noordhuis <info@bnoordhuis.nl>