RFR: 8297830: aarch64: Make Address a descriminated union internally

Wed Nov 30 16:48:29 UTC 2022

On Wed, 30 Nov 2022 15:30:02 GMT, Andrew Haley <aph at openjdk.org> wrote:

> OK, thanks. It does seem to me a bit like moving the furniture around, but I have to admit it's an improvement. :-)

The driver for all these cleanups around aarch64 Address is that when I tried to fix JDK-8160404 I got (valid) compiler warnings here about UB.

-------------

PR: https://git.openjdk.org/jdk/pull/11429