Imported Upstream version 5.14.0.78

Former-commit-id: 3494343bcc9ddb42b36b82dd9ae7b69e85e0229f

mcs/class/System/corefx/StringDictionary.cs

@@ -0,0 +1,27 @@
+// Licensed to the .NET Foundation under one or more agreements.
+// The .NET Foundation licenses this file to you under the MIT license.
+// See the LICENSE file in the project root for more information.
+
+using System.Runtime.InteropServices;
+using System.Diagnostics;
+using System;
+using System.Collections;
+using System.ComponentModel.Design.Serialization;
+using System.Globalization;
+using System.Collections.Generic;
+
+namespace System.Collections.Specialized
+{
+    partial class StringDictionary
+    {
+        internal void ReplaceHashtable (Hashtable useThisHashtableInstead)
+        {
+            contents = useThisHashtableInstead;
+        } 
+
+        internal IDictionary<string, string> AsGenericDictionary ()
+        {
+            return new GenericAdapter(this);
+        }
+    }
+}