Java example boxes: omit cue text from save-and-loaded or cut-and-paste boxes

svn: r1850

original commit: f81cf986b52576551aa934feff8eb584dc908857

collects/embedded-gui/doc.txt

@@ -324,6 +324,10 @@ _cue-text%_ is (cue-text-mixin text%)
   color : string = "gray"
   behavior : (listof (symbols 'on-focus 'on-char)) = '(on-focus)
 
+> (send a-cue-text clear-cue-text)
+
+Clears the cue text, if it's still present.
+
 ============================================================
 
 The following functions are useful for working with snips

collects/embedded-gui/private/cue-text.ss

@@ -28,7 +28,7 @@
       
       #;(-> void)
       ;; Clears the cue-text if it's still there.
-      (define (clear-cue-text)
+      (define/public (clear-cue-text)
         (when first-focus?
           (set! first-focus? false)
           (erase)