module: avoid hasOwnProperty()

hasOwnProperty() is known to be slow, do a direct lookup on a "clean"
object instead.

PR-URL: https://github.com/nodejs/node/pull/10789


Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>
Reviewed-By: Michael Dawson <michael_dawson@ca.ibm.com>
Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>