@Override
	public int hashCode() {
		final int prime = 31;
		int result = super.hashCode();
		result = prime * result + Boolean.hashCode(isCallReference);
		Function function = getRemoteFunction();
		result = prime * result + ((function == null) ? 0 : function.hashCode());
		Address sourceAddress = getSourceAddress();
		result = prime * result + ((sourceAddress == null) ? 0 : sourceAddress.hashCode());
		return result;
	}
Returns true if the reference associated with this node is a call reference type.
@return true if the reference associated with this node is a call reference type.
Ghidra/Features/Base/src/main/java/ghidra/app/plugin/core/calltree/CallNode.java