[lworld] RFR: 8254174: [lworld] [lw3] C1 should optimize access to array of empty types

[Frederic Parain]

Please review these changes adding more optimizations related to empty inline types when accessing flattened arrays.

Thank you,

Fred

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Commit messages:
 - Remove empty line
 - C1 optimization when accessing arrays of empty inline types

Changes: https://git.openjdk.java.net/valhalla/pull/213/files
 Webrev: https://webrevs.openjdk.java.net/?repo=valhalla&pr=213&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8254174
  Stats: 116 lines in 3 files changed: 110 ins; 0 del; 6 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/213.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/213/head:pull/213

PR: https://git.openjdk.java.net/valhalla/pull/213