Imported Upstream version 4.2.0.179

Former-commit-id: 4610231f55806d2a05ed69e5ff3faa7336cc1479

external/referencesource/System.Configuration/System/Configuration/Internal/FileVersion.cs

@@ -0,0 +1,47 @@
+//------------------------------------------------------------------------------
+// <copyright file="FileVersion.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Configuration.Internal {
+    using System.Configuration;
+    using System.IO;
+    using System.Security.Permissions;
+    using System.Reflection;
+    using System.Threading;
+    using System.Security;
+    using System.CodeDom.Compiler;
+    using Microsoft.Win32;	
+#if !FEATURE_PAL
+    using System.Security.AccessControl;
+#endif
+
+    internal class FileVersion {
+        bool        _exists;
+        long        _fileSize;
+        DateTime    _utcCreationTime;
+        DateTime    _utcLastWriteTime;
+
+        internal FileVersion(bool exists, long fileSize, DateTime utcCreationTime, DateTime utcLastWriteTime) {
+            _exists = exists;
+            _fileSize = fileSize;
+            _utcCreationTime = utcCreationTime;
+            _utcLastWriteTime = utcLastWriteTime;
+        }
+
+        public override bool Equals(Object obj) {
+            FileVersion other = obj as FileVersion;
+            return
+                   other != null
+                && _exists == other._exists
+                && _fileSize == other._fileSize
+                && _utcCreationTime == other._utcCreationTime
+                && _utcLastWriteTime == other._utcLastWriteTime;
+        }
+
+        public override int GetHashCode() {
+            return base.GetHashCode();
+        }
+    }
+}