[foreign-memaccess+abi] RFR: Fix build issue with MemoryInspectionUtil

[Maurizio Cimadamore]

MemoryInspectionUtil (and corresponding test) is broken after https://git.openjdk.org/jdk/pull/14013.

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Commit messages:
 - Initial push

Changes: https://git.openjdk.org/panama-foreign/pull/834/files
 Webrev: https://webrevs.openjdk.org/?repo=panama-foreign&pr=834&range=00
  Stats: 3 lines in 2 files changed: 0 ins; 0 del; 3 mod
  Patch: https://git.openjdk.org/panama-foreign/pull/834.diff
  Fetch: git fetch https://git.openjdk.org/panama-foreign.git pull/834/head:pull/834

PR: https://git.openjdk.org/panama-foreign/pull/834