RFR: 8340524: Remove NarrowPtrStruct

[Kim Barrett]

On Sat, 21 Sep 2024 06:06:10 GMT, Aleksey Shipilev <shade at openjdk.org> wrote:

>> Please review this change which removes the class NarrowPtrStruct. The only
>> place it was still being used was as the type of CompressedOops::_narrow_oops.
>> Instead, we move the members from NarrowPtrStruct directly into
>> CompressedOops, flattening its structure.
>> 
>> Testing: mach5 tier1-3
>> Tiers 2&3 run serviceability tests that hit the changes to that component.
>
> Agreed, good cleanup.

Thanks for reviews @shipilev and @TheShermanTanker .

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

PR Comment: https://git.openjdk.org/jdk/pull/21115#issuecomment-2367282433