Codechange: Remove Company/OwnerByte types

src/saveload/afterload.cpp

@@ -1835,7 +1835,7 @@ bool AfterLoadGame()
 			if (IsBuoyTile(t) || IsDriveThroughStopTile(t) || IsTileType(t, MP_WATER)) {
 				Owner o = GetTileOwner(t);
 				if (o < MAX_COMPANIES && !Company::IsValidID(o)) {
-					Backup<CompanyByte> cur_company(_current_company, o, FILE_LINE);
+					Backup<CompanyID> cur_company(_current_company, o, FILE_LINE);
 					ChangeTileOwner(t, o, INVALID_OWNER);
 					cur_company.Restore();
 				}

src/saveload/waypoint_sl.cpp

@@ -36,7 +36,7 @@ struct OldWaypoint {
 	uint8 localidx;
 	uint32 grfid;
 	const StationSpec *spec;
-	OwnerByte owner;
+	Owner owner;
 
 	size_t new_index;
 };