[lworld] RFR: 8293173: [lworld] Fully apply refactoring from JDK-8275201 to Valhalla

[Tobias Hartmann]

When merging master into Valhalla, we omitted/disabled some of the refactoring from [JDK-8275201](https://bugs.openjdk.org/browse/JDK-8275201) (and old [JDK-8266550](https://bugs.openjdk.org/browse/JDK-8266550)) for simplicity because it affects new, Valhalla specific code. This change applies the required changes.

Best regards,
Tobias

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Commit messages:
 - 8293173: [lworld] Fully apply refactoring from JDK-8275201 to Valhalla

Changes: https://git.openjdk.org/valhalla/pull/736/files
 Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=736&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8293173
  Stats: 131 lines in 10 files changed: 33 ins; 54 del; 44 mod
  Patch: https://git.openjdk.org/valhalla/pull/736.diff
  Fetch: git fetch https://git.openjdk.org/valhalla pull/736/head:pull/736

PR: https://git.openjdk.org/valhalla/pull/736