MDL-77348 mod_scorm: Added missing class properties

In PHP 8.2 and later, setting a value to an undeclared class property is
deprecated and emits a deprecation notice.
So we need to add missing class properties that still need to be declared.

mod/scorm/tests/externallib_test.php

@@ -38,6 +38,30 @@ require_once($CFG->dirroot . '/mod/scorm/lib.php');
  */
 class externallib_test extends externallib_advanced_testcase {
 
+    /** @var \stdClass course record. */
+    protected \stdClass $course;
+
+    /** @var \stdClass activity record. */
+    protected \stdClass $scorm;
+
+    /** @var \core\context\module context instance. */
+    protected \core\context\module $context;
+
+    /** @var \stdClass */
+    protected \stdClass $cm;
+
+    /** @var \stdClass user record. */
+    protected \stdClass $student;
+
+    /** @var \stdClass user record. */
+    protected \stdClass $teacher;
+
+    /** @var \stdClass a fieldset object, false or exception if error not found. */
+    protected \stdClass $studentrole;
+
+    /** @var \stdClass a fieldset object, false or exception if error not found. */
+    protected \stdClass $teacherrole;
+
     /**
      * Set up for every test
      */

mod/scorm/tests/lib_test.php

@@ -45,6 +45,30 @@ require_once($CFG->dirroot . '/mod/scorm/lib.php');
  */
 class lib_test extends \advanced_testcase {
 
+    /** @var \stdClass course record. */
+    protected \stdClass $course;
+
+    /** @var \stdClass activity record. */
+    protected \stdClass $scorm;
+
+    /** @var \core\context\module context instance. */
+    protected \core\context\module $context;
+
+    /** @var \stdClass */
+    protected \stdClass $cm;
+
+    /** @var \stdClass user record. */
+    protected \stdClass $student;
+
+    /** @var \stdClass user record. */
+    protected \stdClass $teacher;
+
+    /** @var \stdClass a fieldset object, false or exception if error not found. */
+    protected \stdClass $studentrole;
+
+    /** @var \stdClass a fieldset object, false or exception if error not found. */
+    protected \stdClass $teacherrole;
+
     /**
      * Set up for every test
      */