public boolean isConstantStorage() {
		if (varnodes == null || varnodes.length == 0) {
			return false;
		}
		Address storageAddr = varnodes[0].getAddress();
		return storageAddr.isConstantAddress();
	}
@return true if storage consists of a single constant-space varnode which is used when storing
local function constants.
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/listing/VariableStorage.java