[lworld] Integrated: 8334314: [lworld] javac valhalla tests need refactoring

[Vicente Romero]

removing non-relevant test and adding some additional ones

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Commit messages:
 - 8334314: [lworld] javac valhalla tests need refactoring

Changes: https://git.openjdk.org/valhalla/pull/1133/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1133&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8334314
  Stats: 451 lines in 10 files changed: 49 ins; 400 del; 2 mod
  Patch: https://git.openjdk.org/valhalla/pull/1133.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1133/head:pull/1133

PR: https://git.openjdk.org/valhalla/pull/1133