Include NonPublic properties when expanding variables

Author: andyleejordan

src/PowerShellEditorServices/Services/DebugAdapter/Debugging/VariableDetails.cs

@@ -1,4 +1,4 @@
-// Copyright (c) Microsoft Corporation.
+// Copyright (c) Microsoft Corporation.
 // Licensed under the MIT License.
 
 using System;
@@ -298,6 +298,7 @@ private VariableDetails[] GetChildren(object obj, ILogger logger)
                     else if (obj is IEnumerable enumerable and not string)
                     {
                         int i = 0;
+                        // TODO: Execute this in a delegate on the pipeline thread?
                         foreach (object item in enumerable)
                         {
                             childVariables.Add(
@@ -335,7 +336,9 @@ protected static void AddDotNetProperties(object obj, List<VariableDetails> chil
                 return;
             }
 
-            PropertyInfo[] properties = objectType.GetProperties(BindingFlags.Public | BindingFlags.Instance);
+            // We include NonPublic properties because the C# extension seems to as well, and this
+            // isn't an inline local because we're often debugging it.
+            PropertyInfo[] properties = objectType.GetProperties(BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance);
 
             foreach (PropertyInfo property in properties)
             {