Polymorphic type fail

[CarlOlson]

external toString: [> ] => string = "%identity"

#Hello->toString->Js.log

Playground

(source_file [0, 0] - [3, 0]
  (external_declaration [0, 0] - [0, 47]
    (value_identifier [0, 9] - [0, 17])
    (type_annotation [0, 17] - [0, 33]
      (function_type [0, 19] - [0, 33]
        (function_type_parameters [0, 19] - [0, 23]
          (polyvar_type [0, 19] - [0, 23]
            (polyvar_declaration [0, 21] - [0, 21])))
        (type_identifier [0, 27] - [0, 33])))
    (string [0, 36] - [0, 47]
      (string_fragment [0, 37] - [0, 46])))
  (expression_statement [2, 0] - [2, 24]
    (pipe_expression [2, 0] - [2, 24]
      (pipe_expression [2, 0] - [2, 16]
        (polyvar [2, 0] - [2, 6]
          (polyvar_identifier [2, 0] - [2, 6]))
        (value_identifier [2, 8] - [2, 16]))
      (value_identifier_path [2, 18] - [2, 24]
        (module_identifier [2, 18] - [2, 20])
        (value_identifier [2, 21] - [2, 24])))))
Test.res           0.26 ms         279 bytes/ms (MISSING ".." [0, 21] - [0, 21])