[jdk18u] RFR: 8282929: Localized monetary symbols are not reflected in `toLocalizedPattern` return value

[Ravi Reddy]

Clean backport of https://github.com/openjdk/jdk/commit/c96085eaab1f6b21e084b94fcc619d090f0afc97 . Fixes "toLocalizedPattern" to return correct value for monetary symbols.

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Commit messages:
 - 8282929: Localized monetary symbols are not reflected in `toLocalizedPattern` return value

Changes: https://git.openjdk.java.net/jdk18u/pull/100/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk18u&pr=100&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8282929
  Stats: 68 lines in 2 files changed: 63 ins; 0 del; 5 mod
  Patch: https://git.openjdk.java.net/jdk18u/pull/100.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk18u pull/100/head:pull/100

PR: https://git.openjdk.java.net/jdk18u/pull/100