RFR: 8278828 : java/awt/a11y/AccessibleTextTest.java's createTextArea() just shows instructions on the UI [v2]

[lawrence.andrews]

> 1) Test scenario was just showing test instruction with JTextArea. So added the JTextArea as the instruction and method says. 
> 2) JTextArea is filled with contents so that and an Emoji character making sure that screen reader can read Emoji also.
> 3) Now user can user arrow keys to navigate the JTextArea and screen reader can read it.
> 
> @shurymury 
> 
> Attached the screen shot of the test UI which contains JTextArea along with the instruction.
> <img width="623" alt="Screen Shot 2021-12-14 at 7 09 14 PM" src="https://user-images.githubusercontent.com/87324768/146111187-29f81aab-a138-442d-90bd-df24d512fe01.png">

lawrence.andrews 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 two additional commits since the last revision:

 - Merge branch 'openjdk:master' into jdk-8278828-ws
 - Added JTextArea createTextArea() in AccessibleTextTest.java

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/6844/files
  - new: https://git.openjdk.java.net/jdk/pull/6844/files/4166cb38..d0dfe970

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=6844&range=01
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=6844&range=00-01

  Stats: 42714 lines in 1488 files changed: 27723 ins; 8795 del; 6196 mod
  Patch: https://git.openjdk.java.net/jdk/pull/6844.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/6844/head:pull/6844

PR: https://git.openjdk.java.net/jdk/pull/6844