fix dialyzer issues

Author: lukaszsamson

apps/language_server/lib/language_server/providers/completion/reducers/type_specs.ex

@@ -82,15 +82,6 @@ defmodule ElixirLS.LanguageServer.Providers.Completion.Reducers.TypeSpecs do
     end
   end
 
-  defp expand({{:variable, _, _} = type, hint}, env, aliases) do
-    # TODO Binding should return expanded aliases
-    # TODO use Macro.Env
-    case Binding.expand(env, type) do
-      {:atom, module} -> {Introspection.expand_alias(module, aliases), hint}
-      _ -> {nil, ""}
-    end
-  end
-
   defp expand({type, hint}, _env, _aliases) do
     {type, hint}
   end

apps/language_server/lib/language_server/providers/completion/suggestion.ex

@@ -109,7 +109,7 @@ defmodule ElixirLS.LanguageServer.Providers.Completion.Suggestion do
 
   @add_opts_for [:populate_complete_engine]
 
-  @spec suggestions(String.t(), pos_integer, pos_integer, keyword()) :: [Suggestion.suggestion()]
+  @spec suggestions(String.t(), pos_integer, pos_integer, keyword()) :: [suggestion()]
   def suggestions(code, line, column, options \\ []) do
     {prefix = hint, suffix} = Source.prefix_suffix(code, line, column)