require/import other definitions from .tld

[daurnimator]

From #12 (comment)

there is still not way to require/import other definitions inside .tld files.

It'd be nice if there was some way to require/import definitions from one .tld file to another.

[mascarenhas]

Part of the groundwork for that is already in place (see issue #68). The idea will be to have each module define its own namespace for global type aliases:

---- mymodule.tl ---
interface Foo
  ...
end
...
-----

---- client.tl ---
local mod = require "mymodule"
local foo: mod.Foo = ...
-----

Inside .tld files it is going to work in a similar way (we have not defined a syntax yet, though).