2.1.30 [ECMA-ES2017] Section 19.4.2 Properties of the Symbol Constructor

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V0161: Some properties of the Symbol constructor are not implemented

The specification states:

 19.4.2 Properties of the Symbol Constructor
  
     The value of the [[Prototype]] internal slot of the Symbol constructor is the 
     intrinsic object %FunctionPrototype% ... .
  
     ... The Symbol constructor has the following properties:

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These properties of the Symbol constructor are not implemented:

    hasInstance

    isConcatSpreadable

    toPrimitive

    toStringTag