[lworld] Integrated: 8335280: [lworld] adding more tests to improve code coverage plus fixing minor bugs

[Vicente Romero]

improving test coverage, plus fixing some bugs

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Commit messages:
 - removing whitespace
 - 8335280: [lworld] adding more tests to improve code coverage plus fixing minor bugs

Changes: https://git.openjdk.org/valhalla/pull/1152/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1152&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8335280
  Stats: 487 lines in 6 files changed: 223 ins; 106 del; 158 mod
  Patch: https://git.openjdk.org/valhalla/pull/1152.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1152/head:pull/1152

PR: https://git.openjdk.org/valhalla/pull/1152