eliminate some noise from uitest failure

re-arrange the logic so that when create_doc_in_start_center fails, we
only get one backtrace instead of two.

Change-Id: I736b56da8cfb11e8ef17b8422a19eafd70e3cd6f
Reviewed-on: https://gerrit.libreoffice.org/66415
Tested-by: Jenkins
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>

uitest/uitest/test.py

@@ -115,22 +115,23 @@ class UITest(object):
         xCrashReportDlg = self._xUITest.getTopFocusWindow()
         state = get_state_as_dict(xCrashReportDlg)
         print(state)
-        if state['ID'] == "CrashReportDialog":
+        if state['ID'] != "CrashReportDialog":
+            return False
         print("found a crash reporter")
         xCancelBtn = xCrashReportDlg.getChild("btn_cancel")
         self.close_dialog_through_button(xCancelBtn)
-        else:
-            raise RuntimeException("not a crashreporter")
+        return True
 
     def create_doc_in_start_center(self, app):
         xStartCenter = self._xUITest.getTopFocusWindow()
         try:
             xBtn = xStartCenter.getChild(app + "_all")
         except RuntimeException:
-            print("Handled crash reporter")
-            self._handle_crash_reporter()
+            if self._handle_crash_reporter():
                 xStartCenter = self._xUITest.getTopFocusWindow()
                 xBtn = xStartCenter.getChild(app + "_all")
+            else:
+                raise
 
         with EventListener(self._xContext, "OnNew") as event:
             xBtn.executeAction("CLICK", tuple())