Fix by piping all pointer value parameter output to const
void *, which has a custom handler.

This fixes a case where non-void pointers were being output
as (nil) or other values. Fixes the Capture/Replay tests for
many cases.

Bug: angleproject:5249
Change-Id: I20c9e605d9c5a36e36e7a3d6c753a4e0de94ac4c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2497563
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Cody Northrop <cnorthrop@google.com>
Reviewed-by: Courtney Goeltzenleuchter <courtneygo@google.com>