Don't require full variable resolution when finding results

* lisp/ob.el (org-babel-where-is-src-block-result): Don't try to
  resolve variables when simply checking if we're inside of a code
  block.

lisp/ob.el

@@ -1387,7 +1387,7 @@ following the source block."
 			(match-end 0))))
 	   (name (if on-lob-line
 		     (nth 0 (org-babel-lob-get-info))
-		   (nth 4 (or info (org-babel-get-src-block-info)))))
+		   (nth 4 (or info (org-babel-get-src-block-info 'light)))))
 	   (head (unless on-lob-line (org-babel-where-is-src-block-head)))
 	   found beg end)
       (when head (goto-char head))