Example core file that doesn't load in OTP 22

example.core

module 'example' ['f'/1,
                  'module_info'/0,
                  'module_info'/1]

attributes []

'f'/1 = fun (_1) ->
            case <_1> of
              <~{'foo':='foo'}~> when 'true' ->
                _1
            end

'module_info'/0 = fun () -> call 'erlang':'get_module_info'('example')

'module_info'/1 = fun (_0) -> call 'erlang':'get_module_info'('example', _0)

end

shell-result

➜  ~ erlc +from_core example.core
➜  ~ erl -sname foo
Erlang/OTP 22 [erts-10.4] [source] [64-bit] [smp:12:12] [ds:12:12:10] [async-threads:1] [hipe]

Eshell V10.4  (abort with ^G)
(foo@C02X74D6JGH5)1> code:load_file(example).
=ERROR REPORT==== 25-May-2019::14:40:18.244091 ===
beam/beam_load.c(2314): Error loading function example:f/1: op i_get_map_element_hash p x a u x:
  no specific operation found


{error,badfile}
=ERROR REPORT==== 25-May-2019::14:40:18.244100 ===
Loading of /Users/juan.facorro/example.beam failed: badfile

(foo@C02X74D6JGH5)2>

success.core

module 'example' ['f'/1,
                  'module_info'/0,
                  'module_info'/1]

attributes []

'f'/1 = fun (_1) ->
            case <_1> of
              <~{'foo':='foo'}~> when 'true' ->
                _1
              _2 when 'true' -> 'ok'
            end

'module_info'/0 = fun () -> call 'erlang':'get_module_info'('example')

'module_info'/1 = fun (_0) -> call 'erlang':'get_module_info'('example', _0)

end