MDL-47494 ddimageortext: Add lots of missing public/protected/private.

question/type/ddimageortext/backup/moodle2/restore_qtype_ddwtos_plugin.class.php

@@ -124,7 +124,7 @@ class restore_qtype_ddwtos_plugin extends restore_qtype_plugin {
     /**
      * Return the contents of this qtype to be processed by the links decoder
      */
-    static public function define_decode_contents() {
+    public static function define_decode_contents() {
 
         $contents = array();
 

question/type/ddimageortext/edit_ddwtos_form.php

@@ -37,7 +37,7 @@ require_once($CFG->dirroot . '/question/type/gapselect/edit_form_base.php');
  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  */
 class qtype_ddwtos_edit_form extends qtype_gapselect_edit_form_base {
-    function qtype() {
+    public function qtype() {
         return 'ddwtos';
     }
 

question/type/ddimageortext/questiontype.php

@@ -110,7 +110,7 @@ class qtype_ddwtos extends qtype_gapselect_base {
         return $question;
     }
 
-    function export_to_xml($question, $format, $extra = null) {
+    public function export_to_xml($question, $format, $extra = null) {
         $output = '';
 
         $output .= '    <shuffleanswers>' . $question->options->shuffleanswers . "</shuffleanswers>\n";