gnu: emacs-buttercup: Fix native comp tests with emacs-next.

* gnu/packages/emacs-xyz.scm (emacs-buttercup): Add patch emacs-buttercup-fix-native-comp-pretty-test.
* gnu/packages/patches/emacs-buttercup-fix-native-comp-pretty-test.patch: Add
file.
* gnu/local.mk: Add emacs-buttercup-fix-native-comp-pretty-test.patch.

Signed-off-by: Andrew Tropin <andrew@trop.in>

gnu/local.mk

@@ -1095,6 +1095,7 @@ dist_patch_DATA =						\
   %D%/packages/patches/elm-reactor-static-files.patch		\
   %D%/packages/patches/elogind-fix-rpath.patch			\
   %D%/packages/patches/emacs-all-the-icons-remove-duplicate-rs.patch	\
+  %D%/packages/patches/emacs-buttercup-fix-native-comp-pretty-test.patch	\
   %D%/packages/patches/emacs-deferred-fix-number-of-arguments.patch	\
   %D%/packages/patches/emacs-exec-path.patch			\
   %D%/packages/patches/emacs-ess-fix-obsolete-function-alias.patch	\

gnu/packages/emacs-xyz.scm

@@ -28521,7 +28521,9 @@ targets the Emacs based IDEs (CIDER, ESS, Geiser, Robe, SLIME etc.)")
        (file-name (git-file-name name version))
        (sha256
         (base32
-         "1rvc9r6swb74lhzd877jidkkf2cxl5v4zz302j2imqhsbk844qzh"))))
+         "1rvc9r6swb74lhzd877jidkkf2cxl5v4zz302j2imqhsbk844qzh"))
+       (patches
+        (search-patches "emacs-buttercup-fix-native-comp-pretty-test.patch"))))
     (build-system emacs-build-system)
     (arguments
      (list

gnu/packages/patches/emacs-buttercup-fix-native-comp-pretty-test.patch

@@ -0,0 +1,32 @@
+From 0f822190360a99bac6b532058beb5e20cb2673c3 Mon Sep 17 00:00:00 2001
+From: Nicolas Graves <ngraves@ngraves.fr>
+Date: Sun, 1 Oct 2023 20:20:03 +0200
+Subject: [PATCH] test: Change `pretty' test regexp to pass tests on emacs 30.
+
+---
+ tests/test-buttercup.el | 12 +++++++++---
+ 1 file changed, 9 insertions(+), 3 deletions(-)
+
+diff --git a/tests/test-buttercup.el b/tests/test-buttercup.el
+index d68787b..a2e3ba7 100644
+--- a/tests/test-buttercup.el
++++ b/tests/test-buttercup.el
+@@ -2009,9 +2009,15 @@ text properties using `ansi-color-apply'."
+                   "suite bc-bt-backtrace\n"
+                   "\n"
+                   "Traceback (most recent call last):\n"
+-                  "λ (bc-bt-foo \"" (regex ,long-string) "\")\n"
+-                  "λ (bc-bt-bar \"" (regex ,long-string) "\")\n"
+-                  "λ (bc-bt-baz \"" (regex ,long-string) "\")\n"
++                  (seq
++                   "λ (bc-bt-foo \"" (regex ,long-string) "\")"
++                   (optional "\n"))
++                  (seq
++                   "λ (bc-bt-bar \"" (regex ,long-string) "\")"
++                   (optional "\n"))
++                  (seq
++                   "λ (bc-bt-baz \"" (regex ,long-string) "\")"
++                   (optional "\n"))
+                   (* (seq (or ?M ?λ) " (" (* not-newline) ; frame start
+                           (*? (seq "\n   " (* not-newline))) ; any number of pp lines
+                           (* not-newline) ")\n")) ;; frame end