RFR: 8295212: G1: Add wrapper for TruncatedSeqs that need separation by gc phase [v3]

[Stefan Johansson]

On Tue, 25 Oct 2022 07:47:58 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

>> Hi all,
>> 
>>   can I have reviews for this small refactoring that wraps predictor sequences that are split across gc phases in one more convenient wrapper class to avoid some code repetition?
>> 
>> Testing: tier1
>> 
>> Thanks,
>>   Thomas
>
> Thomas Schatzl has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains four commits:
> 
>  - Merge branch 'master' of https://git.openjdk.org/jdk into submit/8295212-wrapper-for-truncatedseqs2
>  - Use correct sequence for checking mixed samples
>  - Cleanup
>  - Provide a class that wraps two TruncatedSeqs for young-only/mixed phase

Looks good.

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Marked as reviewed by sjohanss (Reviewer).

PR: https://git.openjdk.org/jdk/pull/10793