abstract VC6 workaround inside a WX_CPPUNIT_ALLOW_EQUALS_TO_INT() macro

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@57833 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

tests/datetime/datetimetest.cpp

@@ -32,6 +32,8 @@ static std::ostream& operator<<(std::ostream& ostr, const wxDateTime& dt)
     return ostr;
 }
 
+WX_CPPUNIT_ALLOW_EQUALS_TO_INT(wxDateTime::wxDateTime_t)
+
 // to test Today() meaningfully we must be able to change the system date which
 // is not usually the case, but if we're under Win32 we can try it -- define
 // the macro below to do it