[foreign-jextract] RFR: Fix foreign-jextract after latest library lookup changes

[Henry Jen]

On Thu, 30 Apr 2020 18:12:49 GMT, Maurizio Cimadamore <mcimadamore at openjdk.org> wrote:

> This is a simple patch which fixes up the calls to LibraryLookup so that the heading `MethodHandles.Lookup` parameter
> is dropped.

Marked as reviewed by henryjen (Committer).

LGTM.

-------------

PR: https://git.openjdk.java.net/panama-foreign/pull/139