104   struct FieldInfo {  in NON_EXPORTED_BASE()  struct
105     FieldInfo() = default;  in NON_EXPORTED_BASE()
106     FieldInfo(Node* value, MachineRepresentation representation,  in NON_EXPORTED_BASE()
114     bool operator==(const FieldInfo& other) const {  in NON_EXPORTED_BASE()
119     bool operator!=(const FieldInfo& other) const { return !(*this == other); }  in NON_EXPORTED_BASE()
132     AbstractField(Node* object, FieldInfo info, Zone* zone)  in NON_EXPORTED_BASE()
137     AbstractField const* Extend(Node* object, FieldInfo info,  in NON_EXPORTED_BASE()
144     FieldInfo const* Lookup(Node* object) const;  in NON_EXPORTED_BASE()
156         FieldInfo this_second = this_it.second;  in NON_EXPORTED_BASE()
170     ZoneMap<Node*, FieldInfo> info_for_node_;  in NON_EXPORTED_BASE()
244                                   FieldInfo info, Zone* zone) const;  in NON_EXPORTED_BASE()
255     FieldInfo const* LookupField(Node* object, IndexRange index,  in NON_EXPORTED_BASE()