diff --git a/lisp/erc/erc.el b/lisp/erc/erc.el
index e9a7aef0ba8..118adb803c9 100644
--- a/lisp/erc/erc.el
+++ b/lisp/erc/erc.el
@@ -6033,8 +6033,7 @@ manner implied above, which was lost sometime before ERC 5.4."
   :group 'erc-buffers
   :group 'erc-query
   :type '(choice boolean
-                 (choice :tag "Create pseudo queries for STATUSMSGs"
-                         status)))
+                 (const :tag "Create pseudo queries for STATUSMSGs" status)))
 
 (defcustom erc-format-query-as-channel-p t
   "If non-nil, format text from others in a query buffer like in a channel.
diff --git a/lisp/ibuf-ext.el b/lisp/ibuf-ext.el
index 95ff014aa5b..33b68b96ff2 100644
--- a/lisp/ibuf-ext.el
+++ b/lisp/ibuf-ext.el
@@ -594,22 +594,16 @@ To evaluate a form without viewing the buffer, see `ibuffer-do-eval'."
    :modifier-p :maybe)
   (revert-buffer t t))
 
-;;;###autoload (autoload 'ibuffer-do-isearch "ibuf-ext")
-(define-ibuffer-op ibuffer-do-isearch ()
+;;;###autoload
+(defun ibuffer-do-isearch ()
   "Perform a `isearch-forward' in marked buffers."
-  (:interactive ()
-   :opstring "searched in"
-   :complex t
-   :modifier-p :maybe)
+  (interactive "" ibuffer-mode)
   (multi-isearch-buffers (ibuffer-get-marked-buffers)))
 
-;;;###autoload (autoload 'ibuffer-do-isearch-regexp "ibuf-ext")
-(define-ibuffer-op ibuffer-do-isearch-regexp ()
+;;;###autoload
+(defun ibuffer-do-isearch-regexp ()
   "Perform a `isearch-forward-regexp' in marked buffers."
-  (:interactive ()
-   :opstring "searched regexp in"
-   :complex t
-   :modifier-p :maybe)
+  (interactive "" ibuffer-mode)
   (multi-isearch-buffers-regexp (ibuffer-get-marked-buffers)))
 
 ;;;###autoload (autoload 'ibuffer-do-replace-regexp "ibuf-ext")
diff --git a/lisp/progmodes/c-ts-mode.el b/lisp/progmodes/c-ts-mode.el
index 31dd49dd00c..abc5f19c849 100644
--- a/lisp/progmodes/c-ts-mode.el
+++ b/lisp/progmodes/c-ts-mode.el
@@ -681,7 +681,9 @@ MODE is either `c' or `cpp'."
    :language mode
    :feature 'definition
    ;; Highlights identifiers in declarations.
-   `((declaration
+   `(,@(when (eq mode 'cpp)
+         '((destructor_name (identifier) @font-lock-function-name-face)))
+     (declaration
       declarator: (_) @c-ts-mode--fontify-declarator)
 
      (field_declaration
diff --git a/lisp/shell.el b/lisp/shell.el
index e1936ff1119..4d92fe71df4 100644
--- a/lisp/shell.el
+++ b/lisp/shell.el
@@ -1255,7 +1255,7 @@ line output and parses it to form the new directory stack."
     (while dlsl
       (let ((newelt "")
             tem1 tem2)
-        (while newelt
+        (while (and dlsl newelt)
           ;; We need tem1 because we don't want to prepend
           ;; `comint-file-name-prefix' repeatedly into newelt via tem2.
           (setq tem1 (pop dlsl)
@@ -1629,10 +1629,14 @@ Returns t if successful."
           ;; a newline).  This is far from fool-proof -- if something
           ;; outputs incomplete data and then sleeps, we'll think
           ;; we've received the prompt.
-          (while (not (let* ((lines (string-lines result))
-                             (last (car (last lines))))
+          (while (not (let* ((lines (string-lines result nil t))
+                             (last (car (last lines)))
+                             (last-end (if (equal last "")
+                                           last
+                                         (substring last -1))))
                         (and (length> lines 0)
-                             (not (equal last ""))
+                             (not (member last '("" "\n")))
+                             (not (equal last-end "\n"))
                              (or (not prev)
                                  (not (equal last prev)))
                              (setq prev last))))
diff --git a/src/image.c b/src/image.c
index 2ee2f3245be..3d761bd48be 100644
--- a/src/image.c
+++ b/src/image.c
@@ -2306,6 +2306,9 @@ free_image_cache (struct frame *f)
   struct image_cache *c = FRAME_IMAGE_CACHE (f);
   ptrdiff_t i;
 
+  /* This function assumes the caller already verified that the frame's
+     image cache is non-NULL.  */
+  eassert (c);
   /* Cache should not be referenced by any frame when freed.  */
   eassert (c->refcount == 0);
 
diff --git a/src/search.c b/src/search.c
index dd813eda913..2ff8b0599c4 100644
--- a/src/search.c
+++ b/src/search.c
@@ -2279,7 +2279,7 @@ The optional second argument BOUND is a buffer position that bounds
   value of nil means search to the end of the accessible portion of
   the buffer.
 The optional third argument NOERROR indicates how errors are handled
-  when the search fails.  If it is nil or omitted, emit an error; if
+  when the search fails: if it is nil or omitted, emit an error; if
   it is t, simply return nil and do nothing; if it is neither nil nor
   t, move to the limit of search and return nil.
 The optional fourth argument COUNT is a number that indicates the
diff --git a/src/w32fns.c b/src/w32fns.c
index 7fc2f598b3e..e5798fdd84f 100644
--- a/src/w32fns.c
+++ b/src/w32fns.c
@@ -10472,7 +10472,7 @@ DEFUN ("w32-notification-close",
 {
   struct frame *f = SELECTED_FRAME ();
 
-  if (FIXNUMP (id) && !pfnShell_NotifyIconW)
+  if (FIXNUMP (id) && pfnShell_NotifyIconW)
     delete_tray_notification (f, XFIXNUM (id));
 
   return Qnil;
diff --git a/test/lisp/wdired-tests.el b/test/lisp/wdired-tests.el
index f7bff743058..7c7026354b8 100644
--- a/test/lisp/wdired-tests.el
+++ b/test/lisp/wdired-tests.el
@@ -114,7 +114,7 @@ wdired-mode."
     (setq test-dir (file-truename test-dir))
     (let* ((test-file (concat (file-name-as-directory test-dir) "foo.c"))
            (replace "bar")
-           (new-file (string-replace "foo" replace test-file)))
+           (new-file (string-replace "/foo" (concat "/" replace) test-file)))
       (write-region "" nil test-file nil 'silent)
       (let ((buf (find-file-noselect test-dir)))
         (unwind-protect
@@ -141,21 +141,27 @@ wdired-get-filename before and after editing."
   ;; FIXME: Add a test for a door (indicator ">") only under Solaris?
   (ert-with-temp-directory test-dir
     (let* ((dired-listing-switches "-Fl")
-           (dired-ls-F-marks-symlinks (eq system-type 'darwin))
+           (dired-ls-F-marks-symlinks
+            (or (eq system-type 'darwin)
+                (featurep 'ls-lisp)))
            (buf (find-file-noselect test-dir))
            proc)
       (unwind-protect
           (progn
             (with-current-buffer buf
-              (dired-create-empty-file "foo")
-              (set-file-modes "foo" (file-modes-symbolic-to-number "+x"))
+              ;; Create a .bat file so that MS-Windows, where the 'x'
+              ;; bit is not recorded in the filesystem, considers it an
+              ;; executable.
+              (dired-create-empty-file "foo.bat")
+              (set-file-modes "foo.bat" (file-modes-symbolic-to-number "+x"))
               (skip-unless
                ;; This check is for wdired, not symbolic links, so skip
                ;; it when make-symbolic-link fails for any reason (like
                ;; insufficient privileges).
-               (ignore-errors (make-symbolic-link "foo" "bar") t))
+               (ignore-errors (make-symbolic-link "foo.bat" "bar") t))
               (make-directory "foodir")
-              (dired-smart-shell-command "mkfifo foopipe")
+              (unless (memq system-type '(windows-nt ms-dos))
+                (dired-smart-shell-command "mkfifo foopipe"))
               (when (featurep 'make-network-process '(:family local))
                 (setq proc (make-network-process
                             :name "foo"