[code-reflection] RFR: [hat] testing framework updated to use the new scripts

[Juan Fumero]

Testing framework updated to use the new scripts

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Commit messages:
 - [hat] testing framework updated to use the new scripts

Changes: https://git.openjdk.org/babylon/pull/595/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon&pr=595&range=00
  Stats: 2 lines in 1 file changed: 0 ins; 0 del; 2 mod
  Patch: https://git.openjdk.org/babylon/pull/595.diff
  Fetch: git fetch https://git.openjdk.org/babylon.git pull/595/head:pull/595

PR: https://git.openjdk.org/babylon/pull/595