RFR: 8298725: Add BitMap support for reverse iteration

[Kim Barrett]

On Thu, 23 Mar 2023 08:07:36 GMT, Axel Boldt-Christmas <aboldtch at openjdk.org> wrote:

>> Please review this addition of BitMap::reverse_iterate, which is like
>> BitMap::iterate but visits the set bits in a range from high index to low.
>> 
>> Testing:
>> mach5 tier1, which includes running the updated gtests on all Oracle-supported
>> platform
>
> lgtm.

Thanks for reviews @xmas92 , @stefank , and @tschatzl .

-------------

PR Comment: https://git.openjdk.org/jdk/pull/13151#issuecomment-1483216998