test: add zlib close-after-error regression test

Add a regression test based on the report in
https://github.com/nodejs/node/issues/6034.

PR-URL: https://github.com/nodejs/node/pull/6270


Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>