Function freya_testing::measure_potential_event_listeners

pub fn measure_potential_event_listeners(
    layers: &Layers,
    events: &SmallVec<[PlatformEvent; 2]>,
    viewports: &Viewports,
    fdom: &FreyaDOM
) -> HashMap<EventName, Vec<PotentialEvent>, BuildHasherDefault<FxHasher>>

Measure what potential event listeners could be triggered