org-element-at-point: Report POM when parser throws error

* lisp/org-element.el (org-element-at-point): Mention the value of POM
in warning text when `org-element--parse-to' fails with error.

lisp/org-element.el

@@ -7559,8 +7559,9 @@ element ending there."
                     (condition-case err
                         (org-element--parse-to pom)
                       (error
-                       (org-element--cache-warn "Cache corruption detected in %s. Resetting.\n The error was: %S\n Backtrace:\n%S\n Please report this to Org mode mailing list (M-x org-submit-bug-report)."
+                       (org-element--cache-warn "Cache corruption detected in %s::%S. Resetting.\n The error was: %S\n Backtrace:\n%S\n Please report this to Org mode mailing list (M-x org-submit-bug-report)."
                                      (buffer-name (current-buffer))
+                                     pom
                                      err
                                      (when (and (fboundp 'backtrace-get-frames)
                                                 (fboundp 'backtrace-to-string))