RFR: 8325952: [lworld] tests refactoring, clean-up

[Vicente Romero]

test refactoring, removing a bunch of primitive classes tests. Minor bug fix related to interaction of `value` with other modifiers

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Commit messages:
 - removing white space
 - 8325952: [lworld] tests refactoring, clean-up

Changes: https://git.openjdk.org/valhalla/pull/1007/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1007&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8325952
  Stats: 6629 lines in 120 files changed: 144 ins; 6471 del; 14 mod
  Patch: https://git.openjdk.org/valhalla/pull/1007.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1007/head:pull/1007

PR: https://git.openjdk.org/valhalla/pull/1007