RFR: 8299726: [cleanup] Some code cleanup in opto/compile.hpp [v2]

[xpbob]

On Fri, 6 Jan 2023 10:14:25 GMT, Tobias Hartmann <thartmann at openjdk.org> wrote:

>> xpbob has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   update Copyright
>
> Looks good and trivial.

@TobiHartmann  Thanks for the review

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PR: https://git.openjdk.org/jdk/pull/11879