public default boolean hasReferences() {
		return false;
	}
@return true if this symbol has at least one reference to it.
Explicit references to other symbols at the same address are not considered 
(see {@link Reference#getSymbolID()} which indicates a specific symbol reference).
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/symbol/Symbol.java