show the quiz question title on the quiz statistics page

question data should use the :question_name key for question
names, so that key should be used when showing the title.

Test Plan:
 * Import a quiz from a QTI package
 * Take the quiz and view the statistics page
 * The title should be there.

closes #7065

Change-Id: I39a650cf0f0aa8a8534a0158d6b073dc261c87c3
Reviewed-on: https://gerrit.instructure.com/9738
Reviewed-by: Simon Williams <simon@instructure.com>
Tested-by: Hudson <hudson@instructure.com>

app/views/quizzes/_question_statistic.html.erb

@@ -11,7 +11,7 @@
         <% first_column_done = true %>
         <td class="question_name" rowspan="<%= rows %>">
           <div class="question_name">
-          <%= question[:name] %>
+          <%= question[:question_name] || question[:name] %>
             <div style="float: right;" style="width: 1px; height: 100px;"></div>
             <div class="clear"></div>
           </div>

spec/views/quizzes/_question_statistic.html.erb_spec.rb

@@ -0,0 +1,38 @@
+#
+# Copyright (C) 2011 Instructure, Inc.
+#
+# This file is part of Canvas.
+#
+# Canvas is free software: you can redistribute it and/or modify it under
+# the terms of the GNU Affero General Public License as published by the Free
+# Software Foundation, version 3 of the License.
+#
+# Canvas is distributed in the hope that it will be useful, but WITHOUT ANY
+# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
+# A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+# details.
+#
+# You should have received a copy of the GNU Affero General Public License along
+# with this program. If not, see <http://www.gnu.org/licenses/>.
+#
+
+require File.expand_path(File.dirname(__FILE__) + '/../../spec_helper')
+require File.expand_path(File.dirname(__FILE__) + '/../views_helper')
+
+describe "/quizzes/_question_statistic" do
+  it "should render" do
+    course_with_student
+    view_context
+    assigns[:quiz] = @course.quizzes.create!
+    question = {}
+    question[:id] = 5
+    question[:answers] = []
+    question[:question_type] = "multiple_choice_question"
+    question[:question_name] = "title of glory"
+    question[:unexpected_response_values] = []
+    render :partial => "quizzes/question_statistic", :object => question, :locals => {:in_group => true, :ignore_correct_answers => true}
+    response.should_not be_nil
+    response.body.should =~ /title of glory/
+  end
+end
+