RFR: 8304996: Add missing HandleMarks [v2]

[David Holmes]

On Thu, 30 Mar 2023 07:48:00 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> David Holmes has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Shipilev feedback - moved HMs back inside the loops.
>
> Looks fine to me. (I'd probably put `HandleMark` after the comment, closer to the code in `check_constraints`, but no need to do that if there are no other changes pending.)

Thanks @shipilev !

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PR Comment: https://git.openjdk.org/jdk/pull/13215#issuecomment-1489855067