RFR: 8366475: Rename MetaspaceShared class to AOTMetaspace

[Ioi Lam]

On Sat, 30 Aug 2025 14:15:09 GMT, Vladimir Kozlov <kvn at openjdk.org> wrote:

>> This PR is one (of many) steps in [JDK-8366473](https://bugs.openjdk.org/browse/JDK-8366473) (Refactor CDS source code with new AOT terminology):
>> 
>> Rename this class to with a naming convention that's consistent with other new AOT classes such as AOTClassLinker.
>> 
>> All changes are mechanical text replacement. Headers are resorted alphabetically.
>
> @stefank also asked about `INCLUDE_CDS` to replace it with `INCLUDE_AOT`. Should we do this?

Thanks @vnkozlov @ashu-mehra for the review

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PR Comment: https://git.openjdk.org/jdk/pull/27017#issuecomment-3254504004