Use equal and member instead of eq and memq

* lisp/cedet/semantic/complete.el (semantic-displayer-show-request):
* lisp/descr-text.el (describe-char-categories):
* lisp/mh-e/mh-identity.el (mh-select-identity):
* lisp/transient.el (transient--delay-post-command)
(transient--post-command):
* lisp/vc/vc-git.el (vc-git-create-tag):
* test/lisp/emacs-lisp/cl-lib-tests.el
(cl-lib-nth-value-test-multiple-values):
* lisp/emulation/viper-cmd.el (viper-preserve-cursor-color):
Use `equal` instead of `eq` and `member` instead of `memq` where
the comparison is with literals without guaranteed identity.
In some cases this change corrects evident bugs, in others it is
mostly cosmetic.

lisp/cedet/semantic/complete.el

@@ -1731,7 +1731,7 @@ Display mechanism using tooltip for a list of possible completions.")
       ;; Add any tail info.
       (setq msg (concat msg msg-tail))
       ;; Display tooltip.
-      (when (not (eq msg ""))
+      (when (not (equal msg ""))
 	(semantic-displayer-tooltip-show msg)))))
 
 ;;; Compatibility

lisp/descr-text.el

@@ -366,7 +366,7 @@ This function is semi-obsolete.  Use `get-char-code-property'."
 ;; description is added to the category name as a tooltip
 (defsubst describe-char-categories (category-set)
   (let ((mnemonics (category-set-mnemonics category-set)))
-    (unless (eq mnemonics "")
+    (unless (equal mnemonics "")
       (list (mapconcat
 	     (lambda (x)
 	       (let* ((c (category-docstring x))

lisp/emulation/viper-cmd.el

@@ -194,9 +194,9 @@
 			   viper-delete-backward-char
 			   viper-join-lines
 			   viper-delete-char))
-      (memq (viper-event-key last-command-event)
+      (member (viper-event-key last-command-event)
-	    '(up down left right (meta f) (meta b)
+	      '(up down left right (meta f) (meta b)
-		 (control n) (control p) (control f) (control b)))))
+		(control n) (control p) (control f) (control b)))))
 
 (defsubst viper-insert-state-pre-command-sentinel ()
   (or (viper-preserve-cursor-color)

lisp/mh-e/mh-identity.el

@@ -141,7 +141,7 @@ See `mh-identity-list'."
            (cons '("None")
                  (mapcar #'list (mapcar #'car mh-identity-list)))
            nil t default nil default))
-    (if (eq identity "None")
+    (if (equal identity "None")
         nil
       identity)))
 

lisp/transient.el

@@ -2203,7 +2203,7 @@ value.  Otherwise return CHILDREN as is."
     (unless abort-only
       (setq post-command
             (lambda () "@transient--delay-post-command"
-              (let ((act (and (not (eq (this-command-keys-vector) []))
+              (let ((act (and (not (equal (this-command-keys-vector) []))
                               (or (eq this-command command)
                                   ;; `execute-extended-command' was
                                   ;; used to call another command
@@ -2241,7 +2241,7 @@ value.  Otherwise return CHILDREN as is."
   (transient--debug 'post-command)
   (transient--with-emergency-exit
     (cond
-     ((and (eq (this-command-keys-vector) [])
+     ((and (equal (this-command-keys-vector) [])
            (= (minibuffer-depth)
               (1+ transient--minibuffer-depth)))
       (transient--suspend-override)

lisp/vc/vc-git.el

@@ -1674,7 +1674,8 @@ This requires git 1.8.4 or later, for the \"-L\" option of \"git log\"."
                                  (if branchp "branch" "tag"))))
          (if branchp
              (vc-git-command nil 0 nil "checkout" "-b" name
-                             (when (and start-point (not (eq start-point "")))
+                             (when (and start-point
+                                        (not (equal start-point "")))
                                start-point))
            (vc-git-command nil 0 nil "tag" name)))))
 

test/lisp/emacs-lisp/cl-lib-tests.el

@@ -404,7 +404,7 @@
 (ert-deftest cl-lib-nth-value-test-multiple-values ()
   "While CL multiple values are an alias to list, these won't work."
   :expected-result :failed
-  (should (eq (cl-nth-value 0 '(2 3)) '(2 3)))
+  (should (equal (cl-nth-value 0 '(2 3)) '(2 3)))
   (should (= (cl-nth-value 0 1) 1))
   (should (null (cl-nth-value 1 1)))
   (should-error (cl-nth-value -1 (cl-values 2 3)) :type 'args-out-of-range)