@Override
	public boolean dependsOn(DataType dt) {
		DataType myDt = getDataType();
		return (myDt == dt || myDt.dependsOn(dt));
	}
Get the referenced datatype used to construct this datatype
(datatype which pointer references).
@return referenced datatype
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/PointerTypedef.java