Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/mscorlib/system/notimplementedexception.cs

@@ -0,0 +1,42 @@
+// ==++==
+// 
+//   Copyright (c) Microsoft Corporation.  All rights reserved.
+// 
+// ==--==
+/*=============================================================================
+**
+** Class: NotImplementedException
+**
+**
+** Purpose: Exception thrown when a requested method or operation is not 
+**            implemented.
+**
+**
+=============================================================================*/
+
+namespace System {
+    
+    using System;
+    using System.Runtime.Serialization;
+
+[System.Runtime.InteropServices.ComVisible(true)]
+    [Serializable]
+    public partial class NotImplementedException : SystemException
+    {
+        public NotImplementedException() 
+            : base(Environment.GetResourceString("Arg_NotImplementedException")) {
+            SetErrorCode(__HResults.E_NOTIMPL);
+        }
+        public NotImplementedException(String message) 
+            : base(message) {
+            SetErrorCode(__HResults.E_NOTIMPL);
+        }
+        public NotImplementedException(String message, Exception inner) 
+            : base(message, inner) {
+            SetErrorCode(__HResults.E_NOTIMPL);
+        }
+
+        protected NotImplementedException(SerializationInfo info, StreamingContext context) : base(info, context) {
+        }
+    }
+}