Add new face 'header-line-highlight'

* lisp/faces.el: Define the face.
* lisp/emacs-lisp/tabulated-list.el (tabulated-list-init-header):
* lisp/info.el (Info-fontify-node): Use the new face.
* doc/emacs/display.texi (Standard Faces):
* etc/NEWS: Document the new face.  (Bug#28033)

doc/emacs/display.texi

@@ -711,6 +711,12 @@ Similar to @code{mode-line} for a window's header line, which appears
 at the top of a window just as the mode line appears at the bottom.
 Most windows do not have a header line---only some special modes, such
 Info mode, create one.
+@item header-line-highlight
+@cindex header-line-highlight face
+Similar to @code{highlight} and @code{mode-line-highlight}, but used
+for mouse-sensitive portions of text on header lines.  This is a
+separate face because the @code{header-line} face might be customized
+in a way that does not interact well with @code{highlight}.
 @item vertical-border
 @cindex vertical-border face
 This face is used for the vertical divider between windows on text

etc/NEWS

@@ -254,6 +254,12 @@ face instead of the 'escape-glyph' face.
 ** Approximations to quotes are now displayed with the new 'homoglyph'
 face instead of the 'escape-glyph' face.
 
++++
+** New face 'header-line-highlight'.
+This face is the header-line analogue of 'mode-line-highlight'; it
+should be the preferred mouse-face for mouse-sensitive elements in the
+header line.
+
 ---
 ** 'C-x h' ('mark-whole-buffer') will now avoid marking the prompt
 part of minibuffers.

lisp/emacs-lisp/tabulated-list.el

@@ -191,7 +191,7 @@ Populated by `tabulated-list-init-header'.")
   ;; FIXME: Should share code with tabulated-list-print-col!
   (let ((x (max tabulated-list-padding 0))
 	(button-props `(help-echo "Click to sort by column"
-			mouse-face highlight
+			mouse-face header-line-highlight
 			keymap ,tabulated-list-sort-button-map))
 	(cols nil))
     (if display-line-numbers

lisp/faces.el

@@ -2628,6 +2628,11 @@ Use the face `mode-line-highlight' for features that can be selected."
   :version "21.1"
   :group 'basic-faces)
 
+(defface header-line-highlight '((t :inherit highlight))
+  "Basic header line face for highlighting."
+  :version "26.1"
+  :group 'basic-faces)
+
 (defface vertical-border
   '((((type tty)) :inherit mode-line-inactive))
   "Face used for vertical window dividers on ttys."

lisp/info.el

@@ -4654,7 +4654,7 @@ first line or header line, and for breadcrumb links.")
             (if (string-equal (downcase tag) "node")
                 (put-text-property nbeg nend 'font-lock-face 'info-header-node)
               (put-text-property nbeg nend 'font-lock-face 'info-header-xref)
-              (put-text-property tbeg nend 'mouse-face 'highlight)
+              (put-text-property tbeg nend 'mouse-face 'header-line-highlight)
               (put-text-property tbeg nend
                                  'help-echo
                                  (concat "mouse-2: Go to node "