Merge pull request editorconfig#48 from takeshik/fix-pathless-files

Fix NullReferenceException error for pathless files

Author: Mpdreamz

src/EditorConfig.VisualStudio/Helpers/SettingsExtensions.cs

@@ -11,6 +11,7 @@ internal static class ConfigLoader
         public static bool TryLoad(string path, out FileConfiguration fileConfiguration)
         {
             fileConfiguration = null;
+            if (string.IsNullOrEmpty(path)) return false;
             var parser = new EditorConfigParser();
             var configurations = parser.Parse(path);
             if (!configurations.Any()) return false;