protected Varnode getIndirectBranchTarget(PcodeOp op) {
		return op.getInput(0);
	}
Get the target of an {@link PcodeOp#BRANCHIND indirect branch}, {@link PcodeOp#CALLIND
indirect call}, or {@link PcodeOp#RETURN return} op.

@param op the op
@return the target varnode (input 0)
Ghidra/Framework/Emulation/src/main/java/ghidra/pcode/exec/PcodeExecutor.java