@Override
	public boolean applyTo(Program program) {
		Instruction inst = program.getListing().getInstructionAt(instAddr);
		inst.setFallThrough(fallthroughAddr);
		return true;
	}
Constructs a new command for setting the fallthrough property on an instruction.
@param instAddr the address of the instruction whose fallthrought property is
to be set.
@param fallthroughAddr the address to use for the instructions fallthrough.
Ghidra/Features/Base/src/main/java/ghidra/app/cmd/refs/SetFallThroughCmd.java