[lworld] RFR: 8367711: [lworld] JDI test updates

[Alex Menkov]

Update for JDI tests.
This is follow up for [1519](https://github.com/openjdk/valhalla/pull/1519) (feedback was added after integration)

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Commit messages:
 - jdi tests

Changes: https://git.openjdk.org/valhalla/pull/1702/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1702&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367711
  Stats: 36 lines in 3 files changed: 13 ins; 9 del; 14 mod
  Patch: https://git.openjdk.org/valhalla/pull/1702.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1702/head:pull/1702

PR: https://git.openjdk.org/valhalla/pull/1702