To show programs crashing (or not crashing) on arm64e when a polymorphic object is trivially relocated and then has one of its virtual methods invoked.

arm64e has thrown such a spanner in the works for the standardisation of C++ that we need it on GodBolt for testing to see what crashes and what doesn't crash.

Also unrelated to relocation, I need an arm64e compiler and executor to do work on this: