<Swing Dev> RFR: 8256888: Client manual test problem list update

[Phil Race]

Update the problem list.

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Commit messages:
 - 8256888: Client manual test problem list update

Changes: https://git.openjdk.java.net/jdk/pull/1396/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=1396&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8256888
  Stats: 7 lines in 1 file changed: 6 ins; 0 del; 1 mod
  Patch: https://git.openjdk.java.net/jdk/pull/1396.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/1396/head:pull/1396

PR: https://git.openjdk.java.net/jdk/pull/1396