RE. [1/5]dwrite: Implement Font File Loader registration

[Aric Stewart]

Sorry, I missed this e-mail...

I got a bit sloppy with some of my tests. I will clean those up.
> > +static HRESULT WINAPI fontfileloader_CreateStreamFromKey(IDWriteFontFileLoader *iface, const void *fontFileReferenceKey, UINT32 fontFileReferenceKeySize, IDWriteFontFileStream **fontFileStream)
> > +{
> > +    return 0x8faecafe;
>
> I'm sure this works, but it's cleaner to return E_FAIL/E_NOTIMPL imho.

The point of that part of the test is to show that the error code returned from CreateStreamFromKey is passed down to CreateFontFace.

-aric