SquishTests: Adapt to changed reload behavior

The default for the reload behavior has changed, so explicitly
set the setting when necessary.

Change-Id: Ibcc3e8d2decf3f50dd3d1288c38ec3d027fbc23e
Reviewed-by: Robert Löhning <robert.loehning@qt.io>

tests/system/shared/utils.py

@@ -630,3 +630,13 @@ class GitClone:
 
     def __exit__(self, exc_type, exc_value, traceback):
         deleteDirIfExists(self.localPath)
+
+
+def setReloadBehavior(to):
+    # QC 14 changed the default, so change the preferences
+    invokeMenuItem("Edit", "Preferences...")
+    mouseClick(waitForObjectItem(":Options_QListView", "Environment"))
+    clickOnTab(":Options.qt_tabwidget_tabbar_QTabBar", "System")
+    selectFromCombo("{type='QComboBox' unnamed='1' leftWidget={type='QLabel' "
+                    "text='When files are externally modified:'}}", to)
+    clickButton(":Options.OK_QPushButton")