Imported Upstream version 6.6.0.89

Former-commit-id: b39a328747c2f3414dc52e009fb6f0aa80ca2492

external/api-doc-tools/mdoc/Mono.Documentation/Updater/Formatters/FileNameMemberFormatter.cs

@@ -0,0 +1,19 @@
+using System.Text;
+
+using Mono.Cecil;
+
+namespace Mono.Documentation.Updater
+{
+    class FileNameMemberFormatter : SlashDocMemberFormatter
+    {
+        protected override StringBuilder AppendNamespace (StringBuilder buf, TypeReference type)
+        {
+            return buf;
+        }
+
+        protected override string NestedTypeSeparator
+        {
+            get { return "+"; }
+        }
+    }
+}