RFR: 8343218: Disable allocating interface and abstract classes in non-class metaspace

[Tobias Hartmann]

On Tue, 29 Oct 2024 17:15:44 GMT, Coleen Phillimore <coleenp at openjdk.org> wrote:

> Change the code to allocate all Klasses to class-metaspace until c2 dependencies are understood and fixed, and more urgent need arises when compressing klass pointers to smaller numbers of bits.
> Tested with tier1-4.

FTR, I had a look at [JDK-8343206](https://bugs.openjdk.org/browse/JDK-8343206) and I don't think it's an issue in current code.

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PR Comment: https://git.openjdk.org/jdk/pull/21769#issuecomment-2446464827