public boolean isMemoryStorage() {
		if (varnodes == null || varnodes.length == 0) {
			return false;
		}
		Address storageAddr = varnodes[0].getAddress();
		return storageAddr.isMemoryAddress() && (registers == null);
	}
@return true if storage consists of a single memory varnode which does not correspond
to a register.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/listing/VariableStorage.java