[jdk11u-dev] RFR: 8246222: Rename javac test T6395981.java to be more informative

[Amos Shi]

Backport of [JDK-8246222](https://bugs.openjdk.org/browse/JDK-8246222)
- The only differences between current PR and the original commit is, we removed `RELEASE_12` to `RELEASE_16`
- Because the original commit was on Java `16`, and current repo is Java `11`
- So current PR is `unclean`
- The following is the original PR diff part: it contains `RELEASE_12` to `RELEASE_16`


- * @run main/fail T6395981
- * @run main/fail T6395981 RELEASE_3  RELEASE_5  RELEASE_6
- * @run main/fail T6395981 RELEASE_0  RELEASE_1  RELEASE_2  RELEASE_3  RELEASE_4
- *                         RELEASE_5  RELEASE_6
- * @run main T6395981      RELEASE_3  RELEASE_4  RELEASE_5  RELEASE_6  RELEASE_7
- *                         RELEASE_8  RELEASE_9  RELEASE_10 RELEASE_11 RELEASE_12
- *                         RELEASE_13 RELEASE_14 RELEASE_15 RELEASE_16
+ * @run main/fail TestGetSourceVersions
+ * @run main/fail TestGetSourceVersions RELEASE_3  RELEASE_5  RELEASE_6
+ * @run main/fail TestGetSourceVersions RELEASE_0  RELEASE_1  RELEASE_2  RELEASE_3  RELEASE_4
+ *                                      RELEASE_5  RELEASE_6
+ * @run main TestGetSourceVersions      RELEASE_3  RELEASE_4  RELEASE_5  RELEASE_6  RELEASE_7
+ *                                      RELEASE_8  RELEASE_9  RELEASE_10 RELEASE_11 RELEASE_12
+ *                                      RELEASE_13 RELEASE_14 RELEASE_15 RELEASE_16


Testing
- Local: Test passed
  - `TestGetSourceVersions.java`: Test results: passed: 1
- Pipeline: 
- Testing Machine:

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

Commit messages:
 - Backport be278bc56461c7c9b9e2d9a07e3c15280ab2af03

Changes: https://git.openjdk.org/jdk11u-dev/pull/2476/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk11u-dev&pr=2476&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8246222
  Stats: 124 lines in 2 files changed: 63 ins; 61 del; 0 mod
  Patch: https://git.openjdk.org/jdk11u-dev/pull/2476.diff
  Fetch: git fetch https://git.openjdk.org/jdk11u-dev.git pull/2476/head:pull/2476

PR: https://git.openjdk.org/jdk11u-dev/pull/2476