Support more metadata properties in completion-extra-properties (bug#68214)

* doc/lispref/minibuf.texi (Completion Variables): Add
to the table of completion-extra-properties new items:
`group-function', `display-sort-function', `cycle-sort-function'.

* lisp/icomplete.el (icomplete--augment): Remove unnecessary
plist-get from completion-extra-properties since now
completion-metadata-get does this.

* lisp/minibuffer.el (completion-metadata-get): Use plist-get to
get prop from completion-extra-properties and cache the keyword.
Thanks to Daniel Mendler <mail@daniel-mendler.de>.
(completion-extra-properties): Mention new properties in docstring.
(minibuffer-completion-help): Remove unnecessary
plist-get from completion-extra-properties since now
completion-metadata-get does this.

* lisp/net/eww.el (eww-switch-to-buffer):
* test/lisp/minibuffer-tests.el (completions-affixation-navigation-test):
Unquote lambda in completion-extra-properties.

1 files changed, 5 insertions, 5 deletions

diff --git a/test/lisp/minibuffer-tests.el b/test/lisp/minibuffer-tests.el
index 6dc15d0801f..c1fe3032cb5 100644
--- a/test/lisp/minibuffer-tests.el
+++ b/test/lisp/minibuffer-tests.el
@@ -505,11 +505,11 @@
 
 (ert-deftest completions-affixation-navigation-test ()
   (let ((completion-extra-properties
-         '(:affixation-function
-           (lambda (completions)
-             (mapcar (lambda (c)
-                       (list c "prefix " " suffix"))
-                     completions)))))
+         `(:affixation-function
+           ,(lambda (completions)
+              (mapcar (lambda (c)
+                        (list c "prefix " " suffix"))
+                      completions)))))
     (completing-read-with-minibuffer-setup
         '("aa" "ab" "ac")
       (insert "a")