[jdk11u-dev] RFR: 8238203: Return value of GetUserDefaultUILanguage() should be handled as LANGID

[Stephanie Crater]

Backport of JDK-8238203

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

Commit messages:
 - Backport 1cd5eac5c36b32ca35a23668c3124f23787d91d0

Changes: https://git.openjdk.org/jdk11u-dev/pull/1225/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1225&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8238203
  Stats: 6 lines in 1 file changed: 1 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1225.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1225/head:pull/1225

PR: https://git.openjdk.org/jdk11u-dev/pull/1225