RFR: 8292818: replace 96-bit representation for field metadata with variable-sized streams [v4]

[Frederic Parain]

On Mon, 13 Mar 2023 21:35:17 GMT, Doug Simon <dnsimon at openjdk.org> wrote:

>> Frederic Parain has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   Fixes includes and style
>
> src/hotspot/share/jvmci/jvmciEnv.hpp line 149:
> 
>> 147: };
>> 148: 
>> 149: extern JNIEXPORT jobjectArray c2v_getDeclaredFieldsInfo(JNIEnv* env, jobject, jobject, jlong);
> 
> What's the purpose of this declaration? I don't think you need it or the `friend` declaration below since `new_FieldInfo(FieldInfo* fieldinfo, JVMCI_TRAPS)` is public.

Without this declaration, builds fail on Windows with this error:
`error C2375: 'c2v_getDeclaredFieldsInfo': redefinition; different linkage`

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PR: https://git.openjdk.org/jdk/pull/12855