sc: force vba events ordering.

Otherwise we get workbook load events (eg.) happening at idle, which
occurs at (more or less) random places as the StarBasic interpreter
Yields every few instructions executed.

Change-Id: I51ea57f4ad45e30e04fe84a9dc051ed1c5537536

sc/qa/extras/macros-test.cxx

@@ -306,6 +306,11 @@ void ScMacrosTest::testVba()
         OUString sMsg( "Failed to load " + aFileName );
         CPPUNIT_ASSERT_MESSAGE( OUStringToOString( sMsg, RTL_TEXTENCODING_UTF8 ).getStr(), xComponent.is() );
 
+        // process all events such as OnLoad events etc.
+        // otherwise the tend to arrive later at a random
+        // time - while processing other StarBasic methods.
+        Application::Reschedule(true);
+
         Any aRet;
         Sequence< sal_Int16 > aOutParamIndex;
         Sequence< Any > aOutParam;