[m-rev.] for review: don't emit msgs when creating interface files

[Julien Fischer]

On Sun, 25 Aug 2019, Zoltan Somogyi wrote:

> The diff is mostly straightforward, but I am seeking people's opinions
> on three things.
>
> First, does anyone object to delaying messages about unexpected items
> in interfaces, or the absence of items in interfaces, until code generation time?

No.

> Second, does this change warrant an entry in NEWS?

Probably not.

> Third, would anyone object to a later change that puts all checking
> of whether an item belongs in a given section of a given file into one place,
> parse_module.m?

No objection from me.

Julien.