[lworld] Integrated: 8367767: [lworld] Interpreter adherence to new memory model rules for strict instance fields

[Frederic Parain]

Create new method entry for the interpreter to add a memory barrier when entering the j.l.Object constructor.

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Commit messages:
 - Add arm platform and comments
 - Fix method kind selection
 - Add memory barrier when entering the j.l.Object constructor

Changes: https://git.openjdk.org/valhalla/pull/1647/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1647&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367767
  Stats: 58 lines in 10 files changed: 50 ins; 0 del; 8 mod
  Patch: https://git.openjdk.org/valhalla/pull/1647.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1647/head:pull/1647

PR: https://git.openjdk.org/valhalla/pull/1647