dependencies on tests that were skipped or failed

[mflorin]

We need to be able to run a test if and only if another test failed or was skipped.
One common scenario is when the test suite itself has a "Delete resource" kind of test and the cleanup section also has
a "delete resource" test. We want to run the delete in the cleanup only when the delete in the test suite is skipped.
For example, the sequence

• tests:
  • create
  • update
  • delete
• cleanup:
  • delete

Running with --fail-fast, if the update fails, the suite stops and the delete is not executed then the cleanup should still run to remove the resource that was just created.