[Oberon] Oberon for a C++ user.

[Richard Hable]

I think, it would not make sense to invest a lot of effort just to
eliminate the unsafety of explicit module unloading.

After all, an end user of the Oberon System will just use applications
with automatic on-demand module loading and never have to unload older
versions of these modules.

Only programmers have to do that during the development of a module. And
they can already use unsafe features of the programming language simply
by importing the System module, provoking similar effects e.g. via
unsafe type conversions.

Thus, eliminating the module unloading unsafety would not significantly
improve the stability of the system.

Richard