[jdk11u-dev] RFR: 8274296: Update or Problem List tests which may fail with uiScale=2 on macOS

[Goetz Lindenmaier]

I backport this for parity with 11.0.18-oracle.

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Commit messages:
 - Backport c59f741276d55d98d2628c01bf41eeb571eac7be

Changes: https://git.openjdk.org/jdk11u-dev/pull/1470/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1470&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8274296
  Stats: 13 lines in 8 files changed: 6 ins; 0 del; 7 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1470.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1470/head:pull/1470

PR: https://git.openjdk.org/jdk11u-dev/pull/1470