RFR: 8276921: G1: Remove redundant failed evacuation regions calculation in RemoveSelfForwardPtrHRClosure [v2]

[Albert Mingkun Yang]

On Mon, 15 Nov 2021 01:33:57 GMT, Hamlin Li <mli at openjdk.org> wrote:

>> This is a minor optimization.
>> We already have the number of failed evacuation region numbers, there is no need to calculate it on fly, at least in product code, so make it debug only, and add assert to verify the result.
>
> Hamlin Li has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Remove completely

Marked as reviewed by ayang (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/6362