932     struct InternalIterator {  struct in __anon9bd150090111::TemplateDiff::TSTiterator
935       const TemplateSpecializationType *TST;
938       unsigned Index;
942       TemplateArgument::pack_iterator CurrentTA;
945       TemplateArgument::pack_iterator EndTA;
949       InternalIterator(const TemplateSpecializationType *TST)  in InternalIterator()  function
972       bool isValid() const { return TST; }  in isValid()
975       bool isEnd() const {  in isEnd()
981       InternalIterator &operator++() {  in operator ++()
1017       reference operator*() const {  in operator *()
1027       pointer operator->() const {  in operator ->()