293   struct DFS {  in FindInterveningFrames()  struct
294     CallSequence active_path = {};  in FindInterveningFrames()
295     CallSequence solution_path = {};  in FindInterveningFrames()
296     llvm::SmallPtrSet<Function *, 2> visited_nodes = {};  in FindInterveningFrames()
297     bool ambiguous = false;  in FindInterveningFrames()
298     Function *end;  in FindInterveningFrames()
299     ModuleList &images;  in FindInterveningFrames()
300     Target &target;  in FindInterveningFrames()
301     ExecutionContext &context;  in FindInterveningFrames()
303     DFS(Function *end, ModuleList &images, Target &target,  in FindInterveningFrames()  argument
307     void search(CallEdge &first_edge, Function &first_callee,  in FindInterveningFrames()
314     void dfs(CallEdge &current_edge, Function &callee) {  in FindInterveningFrames()