32 struct DominatorTreeNode {  struct
33   explicit DominatorTreeNode(BasicBlock* bb)  in DominatorTreeNode()  argument
40   using iterator = std::vector<DominatorTreeNode*>::iterator;  argument
41   using const_iterator = std::vector<DominatorTreeNode*>::const_iterator;  argument
44   using df_iterator = TreeDFIterator<DominatorTreeNode>;  argument
45   using const_df_iterator = TreeDFIterator<const DominatorTreeNode>;  argument
47   using post_iterator = PostOrderTreeDFIterator<DominatorTreeNode>;  argument
48   using const_post_iterator = PostOrderTreeDFIterator<const DominatorTreeNode>;  argument
50   iterator begin() { return children_.begin(); }  in begin()
51   iterator end() { return children_.end(); }  in end()
52   const_iterator begin() const { return cbegin(); }  in begin()
53   const_iterator end() const { return cend(); }  in end()
54   const_iterator cbegin() const { return children_.begin(); }  in cbegin()
55   const_iterator cend() const { return children_.end(); }  in cend()
80   DominatorTreeNode* parent_;  argument
81   std::vector<DominatorTreeNode*> children_;  argument
96   using DominatorTreeNodeMap = std::map<uint32_t, DominatorTreeNode>;  argument