[lworld] RFR: 8366440: [lworld] Two tests broken with JDK-8364483

[Coleen Phillimore]

I added some logging and fixed the tests so that one doesn't rely on a migrated class in java.base to throw a VerifyError (will make a parallel fix to this test in mainline).  The other, I changed the logging message that it is looking for. More tests in this area will be added.
Tested locally.

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Commit messages:
 - 8366440: [lworld] Two tests broken with JDK-8364483

Changes: https://git.openjdk.org/valhalla/pull/1544/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1544&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8366440
  Stats: 16 lines in 3 files changed: 9 ins; 1 del; 6 mod
  Patch: https://git.openjdk.org/valhalla/pull/1544.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1544/head:pull/1544

PR: https://git.openjdk.org/valhalla/pull/1544