References not found if function is imported by use

Repro

```elixir
defmodule MyProject.B do
def foo(), do: 1
end

defmodule MyProject.A do
defmacro __using__(ast) do
quote do
import MyProject.B
unquote(ast)
end
end
end

defmodule MyProject do
use MyProject.A

def test() do
foo()
end
end

```

run goto references on `foo` in `def foo(), do: 1`

Indexer is collecting `use`s but not resolving them. `foo()` call in `test` function is indexed as `MyProject.foo` instead of `MyProject.B.foo`.

Going the opposite way works only because we have `elixir_sense` fallback