RFR: 8291600: [vectorapi] vector cast op check is not always needed for vector mask cast [v8]

[Xiaohong Gong]

On Thu, 15 Sep 2022 11:19:10 GMT, Jatin Bhateja <jbhateja at openjdk.org> wrote:

>> Xiaohong Gong has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Address review comment
>
> Marked as reviewed by jbhateja (Reviewer).

Thanks for the review @jatin-bhateja @DamonFool !

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PR: https://git.openjdk.org/jdk/pull/9737