Handle outdated anonymous functions in Erlang/OTP 25 (#11421)

3 files changed, 5 insertions, 2 deletions

diff --git a/lib/elixir/lib/inspect.ex b/lib/elixir/lib/inspect.ex
index 8f77a66ad..52dcb227f 100644
--- a/lib/elixir/lib/inspect.ex
+++ b/lib/elixir/lib/inspect.ex
@@ -347,6 +347,9 @@ defimpl Inspect, for: Function do
     name = fun_info[:name]
 
     cond do
+      not is_atom(mod) ->
+        "#Function<#{uniq(fun_info)}/#{fun_info[:arity]}>"
+
       fun_info[:type] == :external and fun_info[:env] == [] ->
         inspected_as_atom = Identifier.inspect_as_atom(mod)
         inspected_as_function = Identifier.inspect_as_function(name)
diff --git a/lib/elixir/test/elixir/inspect_test.exs b/lib/elixir/test/elixir/inspect_test.exs
index 6e2a64650..fbdb93d88 100644
--- a/lib/elixir/test/elixir/inspect_test.exs
+++ b/lib/elixir/test/elixir/inspect_test.exs
@@ -763,7 +763,7 @@ defmodule Inspect.OthersTest do
     anony = Application.get_env(:elixir, :anony)
     named = Application.get_env(:elixir, :named)
 
-    assert inspect(anony) =~ ~r"#Function<0.\d+/0 in Inspect.OthersTest.V>"
+    assert inspect(anony) =~ ~r"#Function<0.\d+/0"
     assert inspect(named) =~ ~r"&Inspect.OthersTest.V.fun/0"
   after
     Application.delete_env(:elixir, :anony)
diff --git a/lib/elixir/test/elixir/kernel/raise_test.exs b/lib/elixir/test/elixir/kernel/raise_test.exs
index c635c6bc5..3f0e24715 100644
--- a/lib/elixir/test/elixir/kernel/raise_test.exs
+++ b/lib/elixir/test/elixir/kernel/raise_test.exs
@@ -426,7 +426,7 @@ defmodule Kernel.RaiseTest do
         end
 
       assert result =~
-               ~r/function #Function<[0-9]\.[0-9]*\/0 in Kernel.RaiseTest.BadFunction.Missing> is invalid, likely because it points to an old version of the code/
+               ~r/function #Function<[0-9]\.[0-9]*\/0[^>]*> is invalid, likely because it points to an old version of the code/
     end
 
     test "badmatch error" do