RFR: 8324750: C2: rename Matcher methods using "superword" -> "autovectorization" [v2]

[Emanuel Peter]

On Mon, 29 Jan 2024 08:40:42 GMT, Christian Hagedorn <chagedorn at openjdk.org> wrote:

>> Emanuel Peter has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   underscore for Christian
>
> Thanks for the update, looks good!

Thanks for the reviews @chhagedorn @vnkozlov !

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PR Comment: https://git.openjdk.org/jdk/pull/17583#issuecomment-1914225498