* lisp/ob-ref.el (org-babel-ref-goto-headline-id): Split out into its
own function.
(org-babel-ref-headline-body): Split out into its own function.
(org-babel-ref-resolve): Using new functions, and alignment.
* lisp/ob.el (org-babel-ref-goto-headline-id): Declare function.
(org-babel-ref-headline-body): Declare function.
(org-babel-expand-noweb-references): Now expands noweb references to
headlines during expansion.