Move enums out of nesting

osu.Game/Rulesets/Edit/Checks/Components/CheckCategory.cs

@@ -0,0 +1,41 @@
+// Copyright (c) ppy Pty Ltd <contact@ppy.sh>. Licensed under the MIT Licence.
+// See the LICENCE file in the repository root for full licence text.
+
+namespace osu.Game.Rulesets.Edit.Checks.Components
+{
+    /// <summary>
+    /// The category of an issue.
+    /// </summary>
+    public enum CheckCategory
+    {
+        /// <summary> Anything to do with control points. </summary>
+        Timing,
+
+        /// <summary> Anything to do with artist, title, creator, etc. </summary>
+        Metadata,
+
+        /// <summary> Anything to do with non-audio files, e.g. background, skin, sprites, and video. </summary>
+        Resources,
+
+        /// <summary> Anything to do with audio files, e.g. song and hitsounds. </summary>
+        Audio,
+
+        /// <summary> Anything to do with files that don't fit into the above, e.g. unused, osu, or osb. </summary>
+        Files,
+
+        /// <summary> Anything to do with hitobjects unrelated to spread. </summary>
+        Compose,
+
+        /// <summary> Anything to do with difficulty levels or their progression. </summary>
+        Spread,
+
+        /// <summary> Anything to do with variables like CS, OD, AR, HP, and global SV. </summary>
+        Settings,
+
+        /// <summary> Anything to do with hitobject feedback. </summary>
+        Hitsounds,
+
+        /// <summary> Anything to do with storyboarding, breaks, video offset, etc. </summary>
+        Events
+    }
+}