Test of `paint_launched_freefall_tower_section` is invalid. Do note this
function [expects another element right past the one just
passed](https://github.com/OpenRCT2/OpenRCT2/blob/d00aa2c/src/ride/thrill/launched_freefall.c#L147):
```
rct_map_element * nextMapElement = mapElement + 1;
```
but you pass only a single map element, which is not marked as last for
tile. The same prevails throughout other tests.