[m-rev.] should we break up module_qual.m

[Julien Fischer]

On Wed, 11 Nov 2015, Zoltan Somogyi wrote:

> I propose carving out four new submodules out of
> module_qual.m, which is currently one of the compiler's
> biggest modules:
>
> - one for collecting information about what entities
> are defined in which modules;
>
> - one for using that information to module quality items;
>
> - one containing the id_set abstract data type and its
> operations, which are used by both of the first two modules;
>
> - and one for error handling, including both the management
> of error contexts and the generation of error messages.
>
> The very top levels that coordinate these submodules,
> and the mq_info type and its access predicates, would
> remain in module_qual.m.
>
> There are quite a lot of implementation details that
> each of those submodules would hide from all the other
> submodules and from module_qual.m itself, which one reason
> why  I am proposing this. The other is that the submodules
> would make it harder to scatter related predicates in widely
> separated parts of a 3000+ line module, as they were before
> my previous change :-(
>
> Would anyone object to this?

I have no objections.

Julien.