[lworld] RFR: 8367304: [lworld] Printing of rematerialized objects is broken

[Tobias Hartmann]

[JDK-8367263](https://bugs.openjdk.org/browse/JDK-8367263) missed a place in `print_objects` where we need to get the refined array klass based on the properties of the rematerialized array. I did not add a regression test for this because `compiler/uncommontrap/TestDeoptOOM.java` reproduces this intermittently.

Thanks,
Tobias

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Commit messages:
 - 8367304: [lworld] Printing of rematerialized objects is broken

Changes: https://git.openjdk.org/valhalla/pull/1560/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1560&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8367304
  Stats: 48 lines in 1 file changed: 19 ins; 24 del; 5 mod
  Patch: https://git.openjdk.org/valhalla/pull/1560.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1560/head:pull/1560

PR: https://git.openjdk.org/valhalla/pull/1560