[lworld] RFR: 8249887: [lworld] [lw3] Inline types should have a single set of array klasses

[Frederic Parain]

Please review these changes simplifying the handling of meta-data for array classes of inline types.

Tested with Mach5, tiers 1 to 3.

Thank you,

Fred

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Commit messages:
 - Initial cleanup

Changes: https://git.openjdk.java.net/valhalla/pull/190/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=190&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8249887
  Stats: 84 lines in 6 files changed: 12 ins; 53 del; 19 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/190.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/190/head:pull/190

PR: https://git.openjdk.java.net/valhalla/pull/190