RFR: 7903981: Support easy way to use current class name for test actions [v2]

[Christian Stein]

> Please review this change to allow an easier way to use current class name for test actions.

Christian Stein has updated the pull request incrementally with one additional commit since the last revision:

  Clean up

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

Changes:
  - all: https://git.openjdk.org/jtreg/pull/257/files
  - new: https://git.openjdk.org/jtreg/pull/257/files/fa9f1ee6..a28397ca

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jtreg&pr=257&range=01
 - incr: https://webrevs.openjdk.org/?repo=jtreg&pr=257&range=00-01

  Stats: 5 lines in 1 file changed: 0 ins; 0 del; 5 mod
  Patch: https://git.openjdk.org/jtreg/pull/257.diff
  Fetch: git fetch https://git.openjdk.org/jtreg.git pull/257/head:pull/257

PR: https://git.openjdk.org/jtreg/pull/257