RFR: 8290525: Move HeapRegion::_compaction_top to G1FullCollector [v2]

[Thomas Schatzl]

On Thu, 21 Jul 2022 11:14:01 GMT, Kim Barrett <kbarrett at openjdk.org> wrote:

>> Thomas Schatzl has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   kbarrett review
>
> Marked as reviewed by kbarrett (Reviewer).

Thanks @kimbarrett @sangheon for your reviews.

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

PR: https://git.openjdk.org/jdk/pull/9560