hg: panama/dev: 8219103: Add an offsetOf utility to find the offset of Struct fields

[jbvernee at xs4all.nl]

Changeset: 96915e0cd5af
Author:    jvernee
Date:      2019-02-15 17:18 +0100
URL:       http://hg.openjdk.java.net/panama/dev/rev/96915e0cd5af

8219103: Add an offsetOf utility to find the offset of Struct fields
Reviewed-by: sundar, mcimadamore

! src/java.base/share/classes/java/foreign/memory/Struct.java
! test/jdk/com/sun/tools/jextract/libproc/LibprocTest.java
+ test/jdk/java/foreign/OffsetOfTest.java