Squish: Handle Update Generated Files on Mac

Change-Id: I390ba57266ab983335a5d76d38a025b4306c5b74
Reviewed-by: Robert Löhning <robert.loehning@nokia.com>

tests/system/shared/project.py

@@ -17,7 +17,9 @@ def openQmakeProject(projectPath, targets=QtQuickConstants.Targets.DESKTOP):
     selectFromFileDialog(projectPath)
     try:
         # handle update generated files dialog
-        waitForObject("{type='QMessageBox' unnamed='1' visible='1' windowTitle='Update of Generated Files'}", 3000)
+        waitForObject("{type='QLabel' name='qt_msgbox_label' visible='1' "
+                      "text?='The following files are either outdated or have been modified*' "
+                      "window={type='QMessageBox' unnamed='1' visible='1'}}", 3000)
         clickButton(waitForObject("{text='Yes' type='QPushButton' unnamed='1' visible='1'}"))
     except:
         pass