RFR: 8357370: Export supported GCs in JVMCI [v3]

[Roman Kennke]

On Tue, 20 May 2025 13:35:31 GMT, Roman Kennke <rkennke at openjdk.org> wrote:

>> I need a way to detect in JVMCI if Shenandoah GC is supported (that is, built-in) by HotSpot. I need it for Shenandoah, because some vendors don't build it, but for cleanliness the relevant preprocessor constants should be exported for all GCs.
>> 
>> Testing:
>>  - [x] build/test https://github.com/oracle/graal/pull/10904
>
> Roman Kennke has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Align most trailing \s

Thanks!

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

PR Comment: https://git.openjdk.org/jdk/pull/25325#issuecomment-2897553017