Imported Upstream version 4.2.0.179

Former-commit-id: 0a113cb3a6feb7873f632839b1307cc6033cd595

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

@@ -0,0 +1,13 @@
+//------------------------------------------------------------------------------
+// <copyright file="IConfigErrorInfo.cs" company="Microsoft">
+//     Copyright (c) Microsoft Corporation.  All rights reserved.
+// </copyright>
+//------------------------------------------------------------------------------
+
+namespace System.Configuration.Internal {
+
+    public interface IConfigErrorInfo {
+        string Filename   { get; }
+        int    LineNumber { get; }
+    }
+}