public override void VisitSpontaneousTrigger(SpontaneousTriggerSyntax spontaneousTriggerSyntax) {
var location = spontaneousTriggerSyntax.GetLocation();
if(location != null) {
var trigger = new SpontaneousTriggerSymbol(location, spontaneousTriggerSyntax);
_triggers.Add(trigger);
}
}
