Imported Upstream version 4.0.0~alpha1

Former-commit-id: 806294f5ded97629b74c85c09952f2a74fe182d9

external/referencesource/System.Web/Util/DoNotResetAttribute.cs

@@ -0,0 +1,16 @@
+//------------------------------------------------------------------------------
+// <copyright file="DoNotResetAttribute.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>                                                                
+//------------------------------------------------------------------------------
+
+namespace System.Web.Util {
+    using System;
+
+    // If this attribute is applied to a field, it will not be reset by a call to ReflectionUtil.Reset().
+    
+    [AttributeUsage(AttributeTargets.Field, AllowMultiple = false)]
+    internal sealed class DoNotResetAttribute : Attribute {
+    }
+
+}