Imported Upstream version 4.6.0.125

Former-commit-id: a2155e9bd80020e49e72e86c44da02a8ac0e57a4

mcs/class/referencesource/System.Web/Compilation/ForceCopyBuildProvider.cs

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+//------------------------------------------------------------------------------
+// <copyright file="ForceCopyBuildProvider.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+
+
+namespace System.Web.Compilation {
+
+using System;
+using System.Web.Util;
+
+// This is a marker class that causes files to be copied as static files during
+// precompilation, even though their extension may be associated with a source file
+// type.  Concretely, this is used to make sure .js files get copied, as they could be 
+// client side (VSWhidbey 337513)
+internal class ForceCopyBuildProvider: BuildProvider {
+
+    internal ForceCopyBuildProvider() {
+        // Since it's just a marker, it should never be instantiated
+        Debug.Assert(false);
+    }
+
+}
+
+}