137   MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);  in beginMapping()  local
138   if (MN) {  in beginMapping()
139     MN->ValidKeys.clear();  in beginMapping()
144   MapHNode *MN = dyn_cast<MapHNode>(CurrentNode);  in keys()  local
146   if (!MN) {  in keys()
150   for (auto &P : MN->Mapping)  in keys()
169   MapHNode *MN = dyn_cast<MapHNode>(CurrentNode);  in preflightKey()  local
170   if (!MN) {  in preflightKey()
177   MN->ValidKeys.push_back(Key);  in preflightKey()
178   HNode *Value = MN->Mapping[Key].get();  in preflightKey()
199   MapHNode *MN = dyn_cast_or_null<MapHNode>(CurrentNode);  in endMapping()  local
200   if (!MN)  in endMapping()
202   for (const auto &NN : MN->Mapping) {  in endMapping()
203     if (!is_contained(MN->ValidKeys, NN.first())) {  in endMapping()