[crac] RFR: Fix failing CRaC tests

Wed Feb 22 13:11:51 UTC 2023

Before https://github.com/openjdk/crac/pull/16 the arguments for restored process were ignored; tests were written with this in mind and current behaviour breaks them.

In addition I've added missing `-XX:+UnlockDiagnosticVMOptions` flag and fixed the `recursiveCheckpoint` test runner which got stuck as with `pauseengine` the checkpointed process does not terminate.

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Commit messages:
 - Fix failing CRaC tests

Changes: https://git.openjdk.org/crac/pull/47/files
 Webrev: https://webrevs.openjdk.org/?repo=crac&pr=47&range=00
  Stats: 37 lines in 18 files changed: 3 ins; 1 del; 33 mod
  Patch: https://git.openjdk.org/crac/pull/47.diff
  Fetch: git fetch https://git.openjdk.org/crac pull/47/head:pull/47

PR: https://git.openjdk.org/crac/pull/47