RFR: JDK-8283015: Create a test for JDK-4715496

[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.

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Commit messages:
 - 8283015: Create a test for JDK-4715496

Changes: https://git.openjdk.java.net/jdk/pull/7787/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=7787&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8283015
  Stats: 86 lines in 1 file changed: 86 ins; 0 del; 0 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