172 void AnyChildHelper(bool *found, const NodePredicate &cb, AstNode *ast)  in AnyChildHelper()  argument
174     if (*found) {  in AnyChildHelper()
179         *found = true;  in AnyChildHelper()
183     ast->Iterate([=](AstNode *child) { AnyChildHelper(found, cb, child); });  in AnyChildHelper()
188     bool found = false;  in IsAnyChild()  local
189     Iterate([&found, cb](AstNode *child) { AnyChildHelper(&found, cb, child); });  in IsAnyChild()
190     return found;  in IsAnyChild()
193 void FindChildHelper(AstNode *&found, const NodePredicate &cb, AstNode *ast)  in FindChildHelper()  argument
195     if (found != nullptr) {  in FindChildHelper()
200         found = ast;  in FindChildHelper()
204     ast->Iterate([&found, cb](AstNode *child) { FindChildHelper(found, cb, child); });  in FindChildHelper()
209     AstNode *found = nullptr;  in FindChild()  local
210     Iterate([&found, cb](AstNode *child) { FindChildHelper(found, cb, child); });  in FindChild()
211     return found;  in FindChild()