[foreign-jextract] [Rev 01] RFR: 8245003: jextract does not generate accessor for MemorySegement typed values

[Athijegannathan Sundararajan]

> addressof accessor added for MemorySegment typed values (structs, unions, arrays).

Athijegannathan Sundararajan has updated the pull request incrementally with one additional commit since the last
revision:

  Segment of address returned from RuntimeHelper.lookupGlobalVariable should not be non-closeable.
  This additional change was contributed by jvernee.

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

Changes:
  - all: https://git.openjdk.java.net/panama-foreign/pull/165/files
  - new: https://git.openjdk.java.net/panama-foreign/pull/165/files/ba55e444..9ba9b320

Webrevs:
 - full: https://webrevs.openjdk.java.net/panama-foreign/165/webrev.01
 - incr: https://webrevs.openjdk.java.net/panama-foreign/165/webrev.00-01

  Stats: 31 lines in 5 files changed: 9 ins; 4 del; 18 mod
  Patch: https://git.openjdk.java.net/panama-foreign/pull/165.diff
  Fetch: git fetch https://git.openjdk.java.net/panama-foreign pull/165/head:pull/165

PR: https://git.openjdk.java.net/panama-foreign/pull/165