RFR: 8329469: Generational ZGC: Move the methods forwarding_[index|find|insert] from zRelocate.cpp to ZForwarding [v3]

[Guoxiong Li]

On Tue, 9 Apr 2024 15:01:28 GMT, Stefan Karlsson <stefank at openjdk.org> wrote:

>> Guoxiong Li has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Add blank lines.
>
> Looks good.

@stefank @fisk Thanks for your reviews. Integrating.

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PR Comment: https://git.openjdk.org/jdk/pull/18579#issuecomment-2049900589