RFR: 8280870: Parallel: Simplify CLD roots claim in Full GC cycle [v2]

[Stefan Karlsson]

On Fri, 28 Jan 2022 11:08:43 GMT, Albert Mingkun Yang <ayang at openjdk.org> wrote:

>> Simple change around CLD roots claim logic in `MarkFromRootsTask`.
>> 
>> Test: hotspot_gc
>
> Albert Mingkun Yang has updated the pull request incrementally with one additional commit since the last revision:
> 
>   review

Marked as reviewed by stefank (Reviewer).

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

PR: https://git.openjdk.java.net/jdk/pull/7265