I actually wish we could have multiple modules in a single file.
Correct me if I'm wrong, but if imported something and only used
one type there, the linker should strip out the others, right?
But this doesn't happen because ModuleInfo references all kinds
of things, and moduleinfo is referenced for constructors and
such. This is useful and removing it is probably a bad idea.
Breaking up into packages is one idea but you can't always do it.
What if you're doing some big string mixins? A single file is
also a little easier to distribute.
But mixins is the case that is hard to work around since they by
definition go into one file. If we could do something like
mixin("module foo.mixin"~name~" { code }"); you could work around
it.
Then you could isolate sections of generated code in their own
logical modules, letting the linker kill those sections if they
aren't actually used.
