RFR: 8316053: Open some swing tests 3

[Alisen Chung]

Moving tests from closed to open
8 javax/swing/SwingGraphics/VolatileBackBuffer/MultimonVImage.java
9 javax/swing/SwingUtilities/4859570/bug4859570.java
10 javax/swing/SwingUtilities/4936652/bug4936652.java
11 javax/swing/ToolTipManager/4768127/bug4768127.java

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Commit messages:
 - moved files from closed

Changes: https://git.openjdk.org/jdk/pull/15851/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=15851&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8316053
  Stats: 429 lines in 4 files changed: 429 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/15851.diff
  Fetch: git fetch https://git.openjdk.org/jdk.git pull/15851/head:pull/15851

PR: https://git.openjdk.org/jdk/pull/15851