This allows you to test whether a particular interface instance (implemented as a UInterface) has been implemented by a UObject, or whether it's been implemented by a standard C++ type. This is useful if you have an interface that _may_ be implemented by a UObject, but isn't required to be.
#rb Tim.Smith
#preflight 60fb64cd8fe7e0000143f3de
[CL 16954784 by Jamie Dale in ue5-main branch]