"Use" the hitobject

Obviously temporary.

osu.Game.Rulesets.Osu/Scoring/OsuScoreProcessor.cs

@@ -43,6 +43,8 @@ namespace osu.Game.Rulesets.Osu.Scoring
             totalAccurateJudgements = beatmap.HitObjects.Count;
 
             foreach (var h in beatmap.HitObjects)
+            {
+                if (h != null)
                 {
                     // TODO: add support for other object types.
                     AddJudgement(new OsuJudgement
@@ -53,6 +55,7 @@ namespace osu.Game.Rulesets.Osu.Scoring
                     });
                 }
             }
+        }
 
         protected override void Reset()
         {