test: add coverage for napi_has_named_property

Add test to cover napi_has_named_property

PR-URL: https://github.com/nodejs/node/pull/13178


Reviewed-By: Anna Henningsen <anna@addaleax.net>
Reviewed-By: Colin Ihrig <cjihrig@gmail.com>
Reviewed-By: Jason Ginchereau <jasongin@microsoft.com>