[lworld] RFR: 8372686: [lworld] runtime/cds/serviceability/ReplaceCriticalClasses.java fails with --enable-preview

[Coleen Phillimore]

This change fixes the test to try to load a different class with a CFLH.  With --enable-preview, the java/util/Locale class may be loaded when loading the migrated classes at VM startup, so will be shared in this configuration.  So I picked java/util/Calendar instead.
Tested with the test on windows-x64.

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Commit messages:
 - 8372686: [lworld] runtime/cds/serviceability/ReplaceCriticalClasses.java fails with --enable-preview
 - 8372686: [lworld] runtime/cds/serviceability/ReplaceCriticalClasses.java fails with --enable-preview

Changes: https://git.openjdk.org/valhalla/pull/1808/files
  Webrev: https://webrevs.openjdk.org/?repo=valhalla&pr=1808&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8372686
  Stats: 2 lines in 2 files changed: 0 ins; 1 del; 1 mod
  Patch: https://git.openjdk.org/valhalla/pull/1808.diff
  Fetch: git fetch https://git.openjdk.org/valhalla.git pull/1808/head:pull/1808

PR: https://git.openjdk.org/valhalla/pull/1808