Xcode autocomplete not showing overloaded methods

Hi I’m working with c++ and unreal in xcode. I have a problem:

xcode autocomplete doesn’t show me every possible overloaded signature for a method.
How can I solve that ?

for instance if I type GetWorld()->LineTraceSingleByObjectType(…) the autocomplete gives me a method with 4 parameters but, in official documentation, the method takes 5 parameters.
Same thing happens for DrawDebugLine can take 8 param but xcode only show me the method with 4 param.

Can someone help me out with that problem ? thanks a lot guys