Settle elixir_errors:parse_error/6 InputString as charlist (#11345)

Author: michallepicki

lib/elixir/src/elixir_errors.erl

@@ -96,8 +96,8 @@ snippet(InputString, Location, StartLine, StartColumn) ->
   end.
 
 -spec parse_error(elixir:keyword(), binary() | {binary(), binary()},
-                  binary(), binary(), {list(), integer(), integer()}) -> no_return().
-parse_error(Location, File, Error, <<>>, {InputString, StartLine, StartColumn}) ->
+                  binary(), binary(), {unicode:charlist(), integer(), integer()}) -> no_return().
+parse_error(Location, File, Error, <<>>, {InputString, StartLine, StartColumn}) when is_list(InputString) ->
   Message = case Error of
     <<"syntax error before: ">> -> <<"syntax error: expression is incomplete">>;
     _ -> <<Error/binary>>

lib/iex/lib/iex/evaluator.ex

@@ -74,7 +74,7 @@ defmodule IEx.Evaluator do
       opts[:file],
       "incomplete expression",
       "",
-      {"", Keyword.get(opts, :line, 1), Keyword.get(opts, :column, 1)}
+      {'', Keyword.get(opts, :line, 1), Keyword.get(opts, :column, 1)}
     )
   end
 
@@ -103,7 +103,7 @@ defmodule IEx.Evaluator do
           file,
           error,
           token,
-          {input, line, column}
+          {charlist, line, column}
         )
     end
   end