There is a JavaScript syntax error in your code, which might be related to some experimental JavaScript features that aren't an official part of the language specification and therefore not supported yet. The validation cannot continue on this file.
Il ha un error de syntaxe JavaScript in tu codice, que poterea esser correlate a alcun functiones JavaScript experimental que non es un parte official del specification del lingua e dunque non ancora supportate. Le validation non pote continuar sur iste file.