Add a new spelling for module map files 'module.modulemap'

[Dmitri Gribenko]

On Tue, Mar 18, 2014 at 4:52 PM, Ben Langmuir <blangmuir at apple.com> wrote:
> Thanks Argyrios.  Richard & Dmitri: just to confirm - are you okay with me
> committing this now, or did either of you intend to review the patch first?

+  // For frameworks, the preferred spelling is Modules/module.modulemap.
+  // Otherwise it is just module.modulemap.

... Otherwise it is just "module.map" at the framework root.

Apart from that, two comments:

1. There is also the "module_private.map" thing.  Do we want to rename
that file as well?

2. I don't immediately see how DirectoryHasModuleMap interacts with
frameworks now.  Does it contain only root framework directories or
'Module' subdirectories as well?  Could you add a sub framework test
to test this logic in hasModuleMap?

Dmitri

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