Add comment about nameless variables

src/PowerShellEditorServices/Services/DebugAdapter/DebugService.cs

@@ -698,6 +698,8 @@ private async Task<VariableContainerDetails> FetchVariableContainerAsync(
  {
  foreach (PSObject psVariableObject in results)
  {
+ // Under some circumstances, we seem to get variables back with no "Name" field
+ // We skip over those here
  if (psVariableObject.Properties["Name"] is null)
  {
  continue;