@Override
	public String getDefaultLabelPrefix() {
		return "RTTI_4";
	}
Gets the address of the RTTI3 that is referred to from an RTTI4 structure that is placed at 
the indicated address.
@param memory the memory with the data for the RTTI structures.
@param rtti4Address address of an RTTI4 structure
@return the address of the RTTI3 structure or null.
Ghidra/Features/Base/src/main/java/ghidra/app/util/datatype/microsoft/RTTI4DataType.java