Detect qualified types and functions

[sheaf]

I don't know how robust these changes are, but they're producing the result I want in my current projects.
With this change, setting "meta.import" tokens to have a certain color makes the qualifiers match the import statements, which seems logical to me.

It should support qualified names in infix expressions, e.g. `Module.foo`, `Module.Submodule.bar`.

Sorry if I forgot some cases.

[JustusAdam]

I think thats an interesting idea.

When I try this it does work for ordinary bindings, but not for infix bindings. For instance Infix.Operator.func in test/syntax-examples/test.hs is still rendered in all-red.

[sheaf]

I believe that happens because the Infix.Operator part of Infix.Operator.func has both meta.import.qualifier and keyword.operator.function.infix tags (which I think is correct). So I think it depends on how the theme handles it? It works with my theme

I'm not entirely clear on how precedence rules work with TextMate, let me know if you have a suggestion.

[JustusAdam]

Perhaps my theme just doesn't treat imports in any special way then.

[JustusAdam]

I used this opportunity to fix the scope name for the qualifier, please ensure it still highlights correctly for you (it did with a theme I tested)

[sheaf]

Yes, it works as expected with this change.

[sheaf]

The parentheses aren't rendered properly with a qualified symbolic operator:

BTW, I apologise for all the new issues I opened in a row... I don't have time to try to fix them right now, but I'll try to look into it once the air clears a bit. Thanks.