public int getIndex() {
		return index;
	}
A user-defined pcode operation (PcodeOp)
This is implemented as a name and a unique id which is passed
as the first parameter to a PcodeOp with the opcode = "CALLOTHER".
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/app/plugin/processors/sleigh/symbol/UseropSymbol.java