Extension method needn't be public

Author: arialdomartini

examples/CSharp.DocSnippets/Properties.cs

@@ -7,8 +7,8 @@
 
 namespace CSharp.DocSnippets
 {
-    public static class Extensions {
-        public static IEnumerable<int> Insert(this IEnumerable<int> cs, int x) {
+    static class Extensions {
+        internal static IEnumerable<int> Insert(this IEnumerable<int> cs, int x) {
             var result = new List<int>(cs);
             foreach (var c in cs) {
                 if (x <= c) {
@@ -20,7 +20,7 @@ public static IEnumerable<int> Insert(this IEnumerable<int> cs, int x) {
             return result;
         }
 
-        public static bool IsOrdered<T>(this IEnumerable<T> source) {
+        internal static bool IsOrdered<T>(this IEnumerable<T> source) {
             //by Jon Skeet
             //I was too lazy to write it myself, and wondered whether a prettier 
             //solution might exist in C# than the one I had in mind.