RFR: 8286825: Linker naming cleanup [v2]

[Maurizio Cimadamore]

On Fri, 20 May 2022 10:57:44 GMT, Jorn Vernee <jvernee at openjdk.org> wrote:

>> This patch is a batch naming cleanup for the foreign linker implementation.
>> 
>> The naming changes are as follows:
>> 
>>   - ProgrammableInvoker -> DowncallLinker
>>   - ProgrammableUpcallHandler -> UpcallLinker
>>   - 'native invoker' -> 'downcall stub'
>>   - 'optimzed entry blob' -> 'upcall stub'
>>   - OptimizedEntryBlob -> UpcallStub
>>   - optimized_entry_frame -> upcall_stub_frame
>> 
>> Then renaming of some hotspot files:
>> 
>>   - universalNativeInvoker* -> downcallLinker*
>>   - universalUpcallHandler* -> upcallLinker*
>>   - foreign_globals* -> foreignGlobals* (to match existing convention)
>>   
>> Method, field, and other variable names are also adjusted accordingly.
>
> Jorn Vernee has updated the pull request incrementally with one additional commit since the last revision:
> 
>   Comments + cleanup

Marked as reviewed by mcimadamore (Reviewer).

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PR: https://git.openjdk.java.net/jdk/pull/8777