RFR: 8292588: [macos] Multiscreen/MultiScreenLocationTest/MultiScreenLocationTest.java: Robot.mouseMove test failed on Screen #0 [v2]

[Alisen Chung]

> Fixed test bug where mouse location was being calculated before robot mouseMove operation was complete

Alisen Chung has updated the pull request with a new target base due to a merge or a rebase. The incremental webrev excludes the unrelated changes brought in by the merge/rebase. The pull request contains three additional commits since the last revision:

 - re-test
 - Merge branch 'master' of https://github.com/openjdk/jdk into 8292588/MultiScreenLocationTest
 - added robot wait to prevent mouse position from being calculated before robot finishes mouseMove

-------------

Changes:
  - all: https://git.openjdk.org/jdk/pull/10363/files
  - new: https://git.openjdk.org/jdk/pull/10363/files/e54b2739..281589c2

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk&pr=10363&range=01
 - incr: https://webrevs.openjdk.org/?repo=jdk&pr=10363&range=00-01

  Stats: 470448 lines in 7446 files changed: 239380 ins; 152172 del; 78896 mod
  Patch: https://git.openjdk.org/jdk/pull/10363.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/10363/head:pull/10363

PR: https://git.openjdk.org/jdk/pull/10363