[lworld] RFR: 8252111: [lworld] C2 intrinsic needs to handle unsafe access to non-flattened field of constant inline type holder

[Tobias Hartmann]

The C2 intrinsic for unsafe accesses fails to determine the field value when accessing a non-flattened field of a
constant inline type holder.

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Commit messages:
 - 8252111: [lworld] C2 intrinsic needs to handle unsafe access to non-flattened field of constant inline type holder

Changes: https://git.openjdk.java.net/valhalla/pull/159/files
 Webrev: https://webrevs.openjdk.java.net/valhalla/159/webrev.00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8252111
  Stats: 28 lines in 2 files changed: 17 ins; 4 del; 7 mod
  Patch: https://git.openjdk.java.net/valhalla/pull/159.diff
  Fetch: git fetch https://git.openjdk.java.net/valhalla pull/159/head:pull/159

PR: https://git.openjdk.java.net/valhalla/pull/159