RFR: 8371998: G1: Rename G1MergeHeapRootsTask::G1ClearBitmapClosure to be more distinct

[Albert Mingkun Yang]

On Thu, 20 Nov 2025 11:15:55 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   please review the renaming of `G1MergeHeapRootsTask::G1ClearBitmapClosure` to something more distinct and appropriate to its function.
> 
> This also helps distinguishing it to the G1ClearBitmapHRClosure from concurrent marking that just does that.
> 
> Testing: compilation, gha
> 
> Thanks,
>   Thomas

Marked as reviewed by ayang (Reviewer).

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PR Review: https://git.openjdk.org/jdk/pull/28424#pullrequestreview-3487350991