RFR: 8252224: Convert ZValue to use alias templates

[Per Liden]

Looks good.

/Per

On 8/25/20 9:03 AM, Stefan Karlsson wrote:
> Hi all,
> 
> Please review this patch to get rid of some code duplication in the 
> ZValue files by using alias templates.
> 
> https://cr.openjdk.java.net/~stefank/8252224/webrev.01/
> https://bugs.openjdk.java.net/browse/JDK-8252224
> 
> Thanks,
> StefanK