[O] coderef link should support external file path link.

[stardiviner]

When I use ~org-store-link~ in an opened src block to create a coderef
link, then I ~org-insert-link-global~ in another Org file, but it only
has "~(use formdata to send url with params)~" in link source (without
file path). It should contains the source file path like following. (I
have to manually fix this long path to make it work correctly).

#+begin_src org
[[file:~/Org/Wiki/Web%20Scraping.org::(use%20formdata%20to%20send%20url%20with%20params)][use
 formdata to send url with params]]
#+end_src

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