RFR: JDK-8283015: Create a test for JDK-4715496 [v3]

[Srinivas Mandalika]

> Create a test for JDK-4715496
> 
> Issue observed in the above bug is that the JTable.AccessibleJTableCell.getAccessible name returns the cell instance string instead of the cell text.
> The test is being added to verify the same.
> This review is for migrating tests from a closed test suite to open.

Srinivas Mandalika 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 four additional commits since the last revision:

 - Review Comments Fixed: summary line character limit reduced and split for readability
 - Merge branch 'master' of github.com:openjdk/jdk into 8283015
 - frame dispose call on EDT
 - 8283015: Create a test for JDK-4715496

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

Changes:
  - all: https://git.openjdk.java.net/jdk/pull/7787/files
  - new: https://git.openjdk.java.net/jdk/pull/7787/files/2a91f085..0a775d62

Webrevs:
 - full: https://webrevs.openjdk.java.net/?repo=jdk&pr=7787&range=02
 - incr: https://webrevs.openjdk.java.net/?repo=jdk&pr=7787&range=01-02

  Stats: 342 lines in 29 files changed: 274 ins; 3 del; 65 mod
  Patch: https://git.openjdk.java.net/jdk/pull/7787.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/7787/head:pull/7787

PR: https://git.openjdk.java.net/jdk/pull/7787