Issue #3262500 by andypost: Remove leftover mentions of drupal_find_theme_functions() in Drupal 10

core/includes/theme.inc

@@ -198,7 +198,7 @@ function drupal_find_theme_templates($cache, $extension, $path) {
 
   // Find templates that implement possible "suggestion" variants of registered
   // theme hooks and add those as new registered theme hooks. See
-  // drupal_find_theme_functions() for more information about suggestions and
+  // hook_theme_suggestions_alter() for more information about suggestions and
   // the use of 'pattern' and 'base hook'.
   $patterns = array_keys($files);
   foreach ($cache as $hook => $info) {

core/lib/Drupal/Core/Theme/Registry.php

@@ -738,7 +738,7 @@ protected function postProcessExtension(array &$cache, ActiveTheme $theme) {
     foreach ($cache as $hook => $info) {
       // The 'base hook' is only applied to derivative hooks already registered
       // from a pattern. This is typically set from
-      // drupal_find_theme_functions() and drupal_find_theme_templates().
+      // drupal_find_theme_templates().
       if (isset($info['incomplete preprocess functions'])) {
         $this->completeSuggestion($hook, $cache);
         unset($cache[$hook]['incomplete preprocess functions']);