* lisp/org-src.el (org-src-coderef-format): New function
(org-src-coderef-regexp): Change signature.
* lisp/ob-core.el (org-babel--normalize-body):
* lisp/ox.el (org-export-unravel-code): Use new functions.
* testing/lisp/test-org-src.el (test-org-src/coderef-format): New test.