Method setFunctionType

include/ast/type.h:201–204

    FType = std::move(VFT);
  }
  void setFunctionType(FunctionType &&FT) noexcept {
    Type = TypeCode::Func;
    FType = std::move(FT);
  }

  /// Getter for content type.
  TypeCode getContentTypeCode() const noexcept { return Type; }