Imported Upstream version 6.6.0.89

Former-commit-id: b39a328747c2f3414dc52e009fb6f0aa80ca2492

external/api-doc-tools/mdoc/Mono.Documentation/Util/AttachedEventReference.cs

@@ -0,0 +1,21 @@
+using Mono.Cecil;
+
+namespace Mono.Documentation.Util
+{
+    public class AttachedEventReference : FieldReference
+    {
+        private readonly FieldDefinition fieldDefinition;
+        private AttachedEventDefinition definition;
+
+        public AttachedEventReference(FieldDefinition fieldDefinition) : base(AttachedEntitiesHelper.GetEventName(fieldDefinition.Name), fieldDefinition.FieldType, fieldDefinition.DeclaringType)
+        {
+            this.fieldDefinition = fieldDefinition;
+        }
+
+        protected override IMemberDefinition ResolveDefinition()
+        {
+            return definition ??
+                   (definition = new AttachedEventDefinition(fieldDefinition, MetadataToken));
+        }
+    }
+}