anchor.diff:          , 'if'/1
           , 'case'/1
           , 'let'/1
  +        , letfn/1
           , loop/1
           , invoke/1
           , symbol/1
  
positive.code: 
    {comments, ""}.
  
  -spec on_load(config()) -> result().
  on_load(_Config) ->
    ct:comment("erl-on-load*"),
  
negative.code:         , deftype/1
          , defprotocol/1
          , extend_type/1
          , dot/1
          , 'receive'/1
          , on_load/1
          , macroexpand/1
          ]).
  
  -spec all() -> [atom()].
  