[jdk11u-dev] RFR: 8256110: Create implementation for NSAccessibilityStepper protocol [v4]

[Autumn Capasso]

> Backport [JDK-8256110](https://bugs.openjdk.org/browse/JDK-8256110) 
> Clean. One of a series of 28 https://bugs.openjdk.org/browse/JDK-8152350
> --author "Autumn Capasso <autumncap at amazon.com>"

Autumn Capasso has updated the pull request incrementally with six additional commits since the last revision:

 - 8298459: Fix msys2 linking and handling out of tree build directory for source zip creation
   
   Reviewed-by: mdoerr
   Backport-of: d624debe23f60d778d7be43f28d06e9454057217
 - 8179317: [TESTBUG] rewrite runtime shell tests in java
   8247741: Test  test/hotspot/jtreg/runtime/7162488/TestUnrecognizedVmOption.java fails when -XX:+IgnoreUnrecognizedVMOptions is set
   
   Converted shell tests to Java
   
   Reviewed-by: mdoerr
   Backport-of: ccb4ab5499275888e6a088d8bec2faccd6b4db28
 - 8259267: Refactor LoaderLeak shell test as java test.
   8225648: [TESTBUG] java/lang/annotation/loaderLeak/Main.java fails with -Xcomp
   
   Reviewed-by: mdoerr
   Backport-of: 75aa15467ec3d88a26f7c28518a24caf132818bf
 - 8296878: Document Filter attached to JPasswordField and setText("") is not cleared instead inserted characters replaced with unicode null characters
   
   Reviewed-by: phh
   Backport-of: 87f00f4a1bfb392be0684edcdfa0254caec4ca03
 - backport bbb93ca3c80968d4f167bb4cd9e5d3e60e4a6a5b
 - Backport 9d669c912d3977027f321a5e6b7f045ca2ce9482 one of 28. Clean.

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

Changes:
  - all: https://git.openjdk.org/jdk11u-dev/pull/1591/files
  - new: https://git.openjdk.org/jdk11u-dev/pull/1591/files/98db7df2..98753268

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1591&range=03
 - incr: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=1591&range=02-03

  Stats: 1380 lines in 30 files changed: 779 ins; 574 del; 27 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/1591.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev pull/1591/head:pull/1591

PR: https://git.openjdk.org/jdk11u-dev/pull/1591