[foreign] RFR cleanups in jclang-ffi test

[Maurizio Cimadamore]

Looks good

Maurizio

On 10/06/2019 11:16, Sundararajan Athijegannathan wrote:
> Please review.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8225510
> Webrev: https://cr.openjdk.java.net/~sundar/8225510/webrev.00/
>
> Thanks,
> -Sundar