@Override
	public Reference[] getReferencesFrom() {
		if (refMgr != null)
			return refMgr.getReferencesFrom(address);
		ArrayList<Reference> list = new ArrayList<Reference>();
		for (int i = 0; i < getNumOperands(); i++) {
			Reference[] refs = getOperandReferences(i);
			for (Reference ref : refs) {
				list.add(ref);
			}
		}
		return list.toArray(emptyMemRefs);
	}
Get ALL reference FROM this code unit.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/util/PseudoCodeUnit.java