Fix Edebug specification for inline functions (Bug#53068).

* lisp/emacs-lisp/inline.el (inline-quote): Fix Edebug specification.

* test/lisp/emacs-lisp/edebug-tests.el (edebug-tests-inline): New unit
test.

lisp/emacs-lisp/inline.el

@@ -71,7 +71,7 @@
 
 (defmacro inline-quote (_exp)
   "Similar to backquote, but quotes code and only accepts , and not ,@."
-  (declare (debug backquote-form))
+  (declare (debug (backquote-form)))
   (error "inline-quote can only be used within define-inline"))
 
 (defmacro inline-const-p (_exp)

test/lisp/emacs-lisp/edebug-tests.el

@@ -1093,5 +1093,15 @@ This avoids potential duplicate definitions (Bug#41988)."
               (edebug-new-definition name))))
       (should-error (eval-buffer) :type 'invalid-read-syntax))))
 
+(ert-deftest edebug-tests-inline ()
+  "Check that Edebug can instrument inline functions (Bug#53068)."
+  (with-temp-buffer
+    (print '(define-inline edebug-tests-inline (arg)
+              (inline-quote ,arg))
+           (current-buffer))
+    (let ((edebug-all-defs t)
+          (edebug-initial-mode 'Go-nonstop))
+      (eval-buffer))))
+
 (provide 'edebug-tests)
 ;;; edebug-tests.el ends here