FIntVector has some code that refers to it being two dimensonal

There is code in the FIntVector class (IntVector.h) that seems to be copied from the FIntRect class which is a problem since FIntRect is two dimensonal while FIntVector is three dimensional. The one particular function where this is a problem is FIntVector::Num(). This function returns the number of components in the point and is hardcoded to return 2. This should be 3.

The other problem is a comment issue. The function FIntVector::Size()'s comments refer to the function getting the distance between 2 two dimensional points, when it should be listed as 2 three dimensional points.

No steps needed, code issue