RFR: 8231270: ZGC: Remove ZAddressSpace* and ZAddressReserved*

[Per Liden]

Thanks! And I agree that we could use some refined values here if/when 
VerifyOops start to become useful again.

/Per

On 9/24/19 9:07 AM, Stefan Karlsson wrote:
> Looks good.
> 
> -XX:+VerifyOops has bit-rottened so I think it's OK to provide a nop 
> implementation with:
> Universe::calculate_verify_data((HeapWord*)0, (HeapWord*)UINTPTR_MAX);
> 
> but we might want to create an RFE to provide a better bit-mask if 
> VerifyOops is fixed.
> 
> Thanks,
> StefanK
> 
> On 2019-09-19 23:08, Per Liden wrote:
>> After JDK-8224820, ZAddressSpace{Start,End,Size} is not used for 
>> anything other than being printed, so they can be removed. Also, the 
>> two last uses of ZAddressReserved* can easily be replaced.
>>
>> Bug: https://bugs.openjdk.java.net/browse/JDK-8231270
>> Webrev: http://cr.openjdk.java.net/~pliden/8231270/webrev.0
>>
>> /Per