RFR: 8286304: Rename diagnostic flag GCParallelVerificationEnabled to UseGCParallelVerification

[Kim Barrett]

On Fri, 20 May 2022 14:46:42 GMT, Thomas Schatzl <tschatzl at openjdk.org> wrote:

> Hi all,
> 
>   can I get your opinion about this change, if you think it's worth doing, and if so, a review for it?
> 
> If the change goes forward, I will do a release note. Since this is a diagnostic flag, there is no CSR required.
> 
> I grepped sources for that flag, it seems to be only used in these two places.
> 
> Testing: local compilation
> 
> Thanks,
>   Thomas

I don't have a strong opinion either way on the name.  But we do have other
xxxEnabled options (that are product options, so harder to change).

ParallelRefProcEnabled
ParallelRefProcBalancingEnabled

If we're going to make the change proposed here, I think those should be
changed too (with the required ceremony).

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PR: https://git.openjdk.java.net/jdk/pull/8813