[jdk11u-dev] RFR: 8186610: move ModuleUtils to top-level testlibrary

[Andrew Lu]

I backport this for parity with 11.0.23-oracle.

-------------

Commit messages:
 - Backport 7014d0bdf8bcc66a121f576db2074d4fb0a43fa5

Changes: https://git.openjdk.org/jdk11u-dev/pull/2327/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2327&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8186610
  Stats: 29 lines in 9 files changed: 16 ins; 1 del; 12 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2327.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2327/head:pull/2327

PR: https://git.openjdk.org/jdk11u-dev/pull/2327