Fix failing unit test, move legacy hitobjects to Objects/Legacy/.

osu.Game/Modes/Objects/Legacy/LegacySlider.cs

@@ -0,0 +1,26 @@
+// Copyright (c) 2007-2017 ppy Pty Ltd <contact@ppy.sh>.
+// Licensed under the MIT Licence - https://raw.githubusercontent.com/ppy/osu/master/LICENCE
+
+using System.Collections.Generic;
+using osu.Game.Modes.Objects.Types;
+using OpenTK;
+
+namespace osu.Game.Modes.Objects.Legacy
+{
+    /// <summary>
+    /// Base Slider-type, used for parsing Beatmaps.
+    /// </summary>
+    public sealed class LegacySlider : HitObject, IHasCurve, IHasPosition, IHasDistance, IHasRepeats, IHasCombo
+    {
+        public List<Vector2> ControlPoints { get; set; }
+        public CurveType CurveType { get; set; }
+
+        public Vector2 Position { get; set; }
+
+        public double Distance { get; set; }
+
+        public int RepeatCount { get; set; }
+
+        public bool NewCombo { get; set; }
+    }
+}