MDL-53814 quiz: Question type column in manual grading

In the list of questions of the quiz manual grading
the question number (Q#) and the question name is displayed along
with an icon representing the question type.

mod/quiz/report/grading/report.php

@@ -266,7 +266,7 @@ class quiz_grading_report extends quiz_default_report {
     }
 
     protected function display_index($includeauto) {
-        global $OUTPUT;
+        global $OUTPUT, $PAGE;
 
         if ($groupmode = groups_get_activity_groupmode($this->cm)) {
             // Groups is being used.
@@ -297,6 +297,8 @@ class quiz_grading_report extends quiz_default_report {
 
             $row[] = $this->questions[$counts->slot]->number;
 
+            $row[] = $PAGE->get_renderer('question', 'bank')->qtype_icon($this->questions[$counts->slot]->type);
+
             $row[] = format_string($counts->name);
 
             $row[] = $this->format_count_for_table($counts, 'needsgrading', 'grade');
@@ -322,6 +324,7 @@ class quiz_grading_report extends quiz_default_report {
         $table->id = 'questionstograde';
 
         $table->head[] = get_string('qno', 'quiz_grading');
+        $table->head[] = get_string('qtypeveryshort', 'question');
         $table->head[] = get_string('questionname', 'quiz_grading');
         $table->head[] = get_string('tograde', 'quiz_grading');
         $table->head[] = get_string('alreadygraded', 'quiz_grading');

mod/quiz/report/reportlib.php

@@ -98,6 +98,7 @@ function quiz_report_get_significant_questions($quiz) {
     $qsbyslot = $DB->get_records_sql("
             SELECT slot.slot,
                    q.id,
+                   q.qtype,
                    q.length,
                    slot.maxmark
 
@@ -113,6 +114,7 @@ function quiz_report_get_significant_questions($quiz) {
     foreach ($qsbyslot as $question) {
         $question->number = $number;
         $number += $question->length;
+        $question->type = $question->qtype;
     }
 
     return $qsbyslot;