[jdk11u-dev] RFR: 8265586: [windows] last button is not shown in AWT Frame with BorderLayout and MenuBar set.

[Goetz Lindenmaier]

I backport this for parity with 11.0.22-oracle.

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Commit messages:
 - Backport d2045f9cfa88cb8bea58e5476f5917464f966028

Changes: https://git.openjdk.org/jdk11u-dev/pull/2138/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2138&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8265586
  Stats: 110 lines in 2 files changed: 103 ins; 3 del; 4 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2138.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2138/head:pull/2138

PR: https://git.openjdk.org/jdk11u-dev/pull/2138