Add fix for Bug 3326 - WidgetPreInstaller.mmp does not have correct USERINCLUDE for widgetinstaller.h
EXPORTS
?CreateWidgetEngineBridge@@YAPAVMWidgetEngineBridge@@XZ @ 1 NONAME ; class MWidgetEngineBridge * CreateWidgetEngineBridge(void)
?getNumber@JSValue@KJS@@QBE_NAAN@Z @ 2 NONAME ; bool KJS::JSValue::getNumber(double &) const