Handle empty map in other places, closes #10343

lib/elixir/lib/kernel/typespec.ex

@@ -23,10 +23,8 @@ defmodule Kernel.Typespec do
         for {{:type, name, arity}, _, _, doc, _} <- docs do
           case doc do
             %{"en" => doc_string} -> {{name, arity}, doc_string}
-            %{} -> {{name, arity}, nil}
-            :none -> {{name, arity}, nil}
-            # Hidden or unknown format are ignored
-            _ -> {{name, arity}, false}
+            :hidden -> {{name, arity}, false}
+            _ -> {{name, arity}, nil}
           end
         end
 

lib/iex/lib/iex/introspection.ex

@@ -778,9 +778,10 @@ defmodule IEx.Introspection do
     doc && IO.ANSI.Docs.print(doc, format, opts)
   end
 
+  defp translate_doc(%{"en" => doc}), do: doc
+  defp translate_doc(%{}), do: nil
   defp translate_doc(:none), do: nil
   defp translate_doc(:hidden), do: nil
-  defp translate_doc(%{"en" => doc}), do: doc
 
   defp no_beam(module) do
     case Code.ensure_loaded(module) do