RFR: 8255067: Restore Copyright line in file modified by 8253191

Tue Oct 20 19:21:26 UTC 2020

Make it crystal clear that  8253191 test case doesn't have anything in common with the original version of the test
case for 8204479:
  * restore original test case
  * add 8253191 test case as a separate file

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Commit messages:
 - New test case
 - Restore original test case

Changes: https://git.openjdk.java.net/jdk/pull/771/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jdk&pr=771&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8255067
  Stats: 71 lines in 2 files changed: 24 ins; 19 del; 28 mod
  Patch: https://git.openjdk.java.net/jdk/pull/771.diff
  Fetch: git fetch https://git.openjdk.java.net/jdk pull/771/head:pull/771

PR: https://git.openjdk.java.net/jdk/pull/771