[lworld] RFR: 8373982: [lworld] Verification code in InlineTypeNode::has_phi_inputs does not check all field values

[Marc Chevalier]

This PR makes a for loop in `bool InlineTypeNode::has_phi_inputs(Node* region)` actually iterate over every field.

It doesn't seem to trigger any crash in tiers tier1,tier2,tier3,hs-precheckin-comp,hs-comp-stress,valhalla-comp-stress.

Thanks,
Marc

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Commit messages:
 - Iterate on everything

Changes: https://git.openjdk.org/valhalla/pull/1892/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1892&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8373982
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/valhalla/pull/1892.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1892/head:pull/1892

PR: https://git.openjdk.org/valhalla/pull/1892