RFR (S) 8202447: Fix unloading_occurred to mean unloading_occurred

[coleen.phillimore at oracle.com]

Thank you, Serguei.  I'm glad you reviewed this!
Coleen

On 5/1/18 6:10 PM, serguei.spitsyn at oracle.com wrote:
> Hi Coleen,
>
> The fix looks good to me.
>
> Thanks,
> Serguei
>
>
> On 5/1/18 12:24, coleen.phillimore at oracle.com wrote:
>> Summary: nmethod unloading does not need to test for jvmti to set 
>> unloading_occurred, nor do we need to clean weak Klasses in metadata 
>> if unloading does not occur.
>>
>> open webrev at http://cr.openjdk.java.net/~coleenp/8202447.01/webrev
>> bug link https://bugs.openjdk.java.net/browse/JDK-8202447
>>
>> Tested with mach5 hs-tier1-4, rerunning hs-tier3.  Kitchensink 24 
>> hours, and runThese with all 4 GCs.
>>
>> Thanks,
>> Coleen
>