RFR: 7903412: JOL: Lilliput model should include info on compressed classes/refs

[Aleksey Shipilev]

A little follow-up for [CODETOOLS-7903411](https://bugs.openjdk.org/browse/CODETOOLS-7903411), Lilliput model should also reply proper compressed refs/klasses status.

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

Commit messages:
 - Fix

Changes: https://git.openjdk.org/jol/pull/40/files
 Webrev: https://webrevs.openjdk.org/?repo=jol&pr=40&range=00
  Issue: https://bugs.openjdk.org/browse/CODETOOLS-7903412
  Stats: 2 lines in 1 file changed: 1 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/jol/pull/40.diff
  Fetch: git fetch https://git.openjdk.org/jol pull/40/head:pull/40

PR: https://git.openjdk.org/jol/pull/40