[internals] Detect immediatly applied funs and change the error message accordingly

[Shakadak]

investiguate this strange data

  1) test view with anonymous function, wrong arg (AnonymousFunctionViewTest)
     test/anonymous_function_view_test.exs:86
     ** (CaseClauseError) no case clause matching: {[1, 2, 3]}
     code: view [1, 2, 3] do
     stacktrace:
       test/anonymous_function_view_test.exs:90: (test)

Should display [1, 2, 3] instead of the same but wrapped in a 1-tuple.

[Shakadak]

When an anonymous function is defined and then immediately applied (fn x -> x + 1).(0), if it is compiled code, then the Erlang VM executes it as a case. (Explaining the wrapping in a tuple, as that's how I did it for a custom def)
So nothing can be done on my end, and it's plenty normal.

[Shakadak]

erlang/otp#4545

[Shakadak]

Detect this case and unwrap the values to raise error similar to Elixir