RFR: 8347645: C2: XOR bounded value handling blocks constant folding [v27]

[Johannes Graham]

On Thu, 13 Feb 2025 09:53:23 GMT, Emanuel Peter <epeter at openjdk.org> wrote:

>> `calc_xor_max` is a static method in the cpp file and thus it is not preferrable to import it directly into the test file.
>
> I suppose this is more of a cosmetic concern, not as important. Up to you what you want to do @j3graham .

I tried a few variations, and this seemed the least invasive one. I miss java package-scope.

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PR Review Comment: https://git.openjdk.org/jdk/pull/23089#discussion_r1955109012