Resolve “filter_adjacent_location” not working in ability

[newfrenchy83]

This is not a stricto sensus repair since in this configuration [filter_adjacent_location] will have to be encoded inside a [filter] filter, but the advantage is to generalize the use of this sub-filter to events and others, in addition to having a functional version for the abilities. I don't know if @stevecotton will succeed in repairing the current filter and I therefore propose an alternative.