[crac] RFR: 8365241: [CRaC] Ignore new arguments when CRaCIgnoreRestoreIfUnavailable is true [v6]

[Timofei Pushkin]

> Arguments are not passed to the restored process when `-XX:+CRaCIgnoreRestoreIfUnavailable` is set on restore. The check is performed on the side of the restoring VM since in the restored VM `CRaCIgnoreRestoreIfUnavailable` could have been set before the current restore.
> 
> Documentation for the new arguments feature and `CRaCIgnoreRestoreIfUnavailable` is also added, explaining this behavior.

Timofei Pushkin has updated the pull request incrementally with one additional commit since the last revision:

  Improve readability of a check

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

Changes:
  - all: https://git.openjdk.org/crac/pull/261/files
  - new: https://git.openjdk.org/crac/pull/261/files/e7ffc187..045d4fcd

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=crac&pr=261&range=05
 - incr: https://webrevs.openjdk.org/?repo=crac&pr=261&range=04-05

  Stats: 1 line in 1 file changed: 0 ins; 0 del; 1 mod
  Patch: https://git.openjdk.org/crac/pull/261.diff
  Fetch: git fetch https://git.openjdk.org/crac.git pull/261/head:pull/261

PR: https://git.openjdk.org/crac/pull/261