[foreign-jextract] 8237870: Use platform specific layout constants in jextracted code

[Maurizio Cimadamore]

There's a better way to test for platform now (SystemABI.getName()) - we 
should use that instead plus a string in switch.

Maurizio

On 27/01/2020 09:22, sundararajan.athijegannathan at oracle.com wrote:
> Please review.
>
> Bug: https://bugs.openjdk.java.net/browse/JDK-8237870
>
> Webrev: http://cr.openjdk.java.net/~sundar/8237870/webrev.00/
>
> PS. See also: 
> https://mail.openjdk.java.net/pipermail/panama-dev/2020-January/007287.html
>
> Thanks,
>
> -Sundar
>
>