RFR: 8247532, 8248135: Records deserialization is slow + Build microbenchmarks with --enable-preview

[Chris Hegarty]

> On 23 Jun 2020, at 10:17, Peter Levart <peter.levart at gmail.com> wrote:
> 
> ...
> http://cr.openjdk.java.net/~plevart/jdk-dev/RecordsDeserialization/webrev.08/

Good stuff. Reviewed.

I am going to take this latest change and run it through our internal build and test system. Will post the results here soon.

-Chris.