RFR (XL) 8210385: Clean up JNI_ENV_ARG and factorize the macros for remaining vmTestbase/jvmti tests

[Alex Menkov]

Hi Jc,

I'd prefer to see the fix splitted to smaller parts.
The changes are quite simple, but it's just too many files, so it's 
impossible (at least for me) to review them accurately.

--alex

On 09/07/2018 10:53, JC Beyler wrote:
> Hi all,
> 
> I'm taking the risk to perhaps do something too huge but as it is the 
> same as the previous ones (and the last one!):
> 
> It's 4k of changes, for that I apologize. I can divide it up in 2/3 
> parts again if you want or we can just do it in one go since now some 
> reviewers know what to expect. There still is a bit of refactoring to 
> the vmTestbase but this will in essence finish:
>    - Removing the JNI_ENV* and JVMTI_ENV* macros for the vmTestbase
> 
> Webrev: http://cr.openjdk.java.net/~jcbeyler/8210385/webrev.00/ 
> <http://cr.openjdk.java.net/%7Ejcbeyler/8210385/webrev.00/>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8210385
> 
> Thanks for your reviews and let me know if you would prefer me to cut it 
> up like I did the Get[A-F] & Get[G-Z] ones,
> Jc
> 
> Ps: for the curious, then we can start cleaning up the native code a bit 
> more sanely (example: JDK-8191519) and there will be one more webrev 
> removing #ifdef cplusplus lingering in the vmTestbase (JDK-8210481).
>