org-babel-goto-named-src-block bugfix

* lisp/ob-core.el (org-babel-goto-named-src-block): The user prompt
  (i.e. `initial-input' arg of `completing-read') will be the name of
  the results block, noweb reference, call reference, or symbol if
  point is in such.

* testing/lisp/test-ob.el (test-ob/goto-named-src-block): Simulate
  interactive use of `org-babel-goto-named-src-block'.

lisp/ob-core.el

@@ -1691,15 +1691,21 @@ If the point is not on a source block then return nil."
      (list (completing-read
 	    "source-block name: " all-block-names nil t
 	    (let* ((context (org-element-context))
-		   (type (org-element-type context)))
+		   (type (org-element-type context))
+		   (noweb-ref
+		    (and (memq type '(inline-src-block src-block))
+			 (org-in-regexp (org-babel-noweb-wrap)))))
 	      (cond
-	       ((and (memq type '(inline-src-block src-block)) ;<<noweb>>
-		     (org-in-regexp (org-babel-noweb-wrap))))
+	       (noweb-ref
+		(buffer-substring
+		 (+ (car noweb-ref) (length org-babel-noweb-wrap-start))
+		 (- (cdr noweb-ref) (length org-babel-noweb-wrap-end))))
 	       ((memq type '(babel-call inline-babel-call)) ;#+CALL:
 		(org-element-property :call context))
-	       ((org-element-property :results context)) ;#+RESULTS:
+	       ((car (org-element-property :results context))) ;#+RESULTS:
 	       ((let ((symbol (thing-at-point 'symbol))) ;Symbol.
-		  (and (member-ignore-case symbol all-block-names)
+		  (and symbol
+		       (member-ignore-case symbol all-block-names)
 		       symbol)))
 	       (t "")))))))
   (let ((point (org-babel-find-named-block name)))

testing/lisp/test-ob.el

@@ -1697,6 +1697,48 @@ echo \"$data\"
 	(goto-char (org-babel-where-is-src-block-result t nil "bbbb")))
       (org-trim (buffer-substring-no-properties (point) (point-max)))))))
 
+(ert-deftest test-ob/goto-named-src-block ()
+    "Test interactive use of `org-babel-goto-named-src-block'."
+    (org-test-with-temp-text-in-file
+		"
+#+NAME: abc
+#+BEGIN_SRC emacs-lisp :results value
+(1+ 1)
+#+END_SRC
+#+CALL: abc( lorem() ) :results raw :wrap EXAMPLE
+#+BEGIN_SRC emacs-lisp
+<<abc>>
+#+END_SRC
+abc
+#+RESULTS: abc
+: 2
+"
+       ;; non-existent name
+       (should-not
+         (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\nno-name\n"))
+       ;; correct name
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\nabc\n")
+       (should  (= 14 (point)))
+       ;; call line   - autocompletion
+       (forward-line 3)
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
+       (should  (= 14 (point)))
+       ;; noweb reference  - autocompletion
+       (forward-line 5)
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
+       (should  (= 14 (point)))
+       ;; at symbol  - autocompletion
+       (forward-line 7)
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
+       (should  (= 14 (point)))
+       ;; in results  - autocompletion
+       (forward-line 8)
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
+       (should  (= 14 (point)))
+       (forward-line 9)
+       (execute-kbd-macro  "\M-xorg-babel-goto-named-src-block\n\n")
+       (should  (= 14 (point)))))
+
 (provide 'test-ob)
 
 ;;; test-ob ends here