[jdk21u-dev] RFR: 8353201: Open source Swing Tooltip tests - Set 2

[Satyen Subramaniam]

Backporting JDK-8353201: Open source Swing Tooltip tests - Set 2. Adds three tooltip swing tests. Ran GHA Sanity Checks, local Tier 1 and 2, and new tests directly. Patch is clean. Backporting for parity with Oracle.

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Commit messages:
 - Backport e17c3994b8392357b0aacea0bae6b354a2cc90a5

Changes: https://git.openjdk.org/jdk21u-dev/pull/2222/files
  Webrev: https://webrevs.openjdk.org/?repo=jdk21u-dev&pr=2222&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8353201
  Stats: 282 lines in 3 files changed: 282 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk21u-dev/pull/2222.diff
  Fetch: git fetch https://git.openjdk.org/jdk21u-dev.git pull/2222/head:pull/2222

PR: https://git.openjdk.org/jdk21u-dev/pull/2222