Accessing JS objects can be trapped with proxy handlers. These
handlers can throw when no node-api errors occur. In such cases,
`napi_pending_exception` should be returned.
PR-URL: https://github.com/nodejs/node/pull/48607
Reviewed-By: Gabriel Schulhof <gabrielschulhof@gmail.com>
Reviewed-By: Michael Dawson <midawson@redhat.com>
