public IncompatibleUnaryOperator(Unary node, Types.Type childType)
 {
     this.node = node;
     this.childType = childType;
 }
 public ComputedQuestionTypeConflict(Question node, Types.Type typeOfComputedField)
 {
     this.node = node;
         this.typeOfComputedField = typeOfComputedField;
 }