From f64e3344b2f970b02b98845cc3f60618e2756e41 Mon Sep 17 00:00:00 2001
From: Alex Pott <alex.a.pott@googlemail.com>
Date: Mon, 7 Feb 2022 09:35:33 +0000
Subject: [PATCH] Issue #3262500 by catch, andypost: Mark
 drupal_find_theme_functions() @internal in Drupal 9

---
 core/includes/theme.inc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/core/includes/theme.inc b/core/includes/theme.inc
index 3a2a964fb8ba..ee0302249805 100644
--- a/core/includes/theme.inc
+++ b/core/includes/theme.inc
@@ -126,6 +126,9 @@ function drupal_theme_rebuild() {
 /**
  * Allows themes and/or theme engines to discover overridden theme functions.
  *
+ * @internal only exists to support discovery of deprecated theme functions,
+ *   will be removed in Drupal 10.0.0.
+ *
  * @param array $cache
  *   The existing cache of theme hooks to test against.
  * @param array $prefixes