private void setNextContextChangePoint(Address currentAddress) {
		AddressRange range =
			programContext.getRegisterValueRangeContaining(contextRegister, currentAddress);
		contextChangePoint = null;
		try {
			contextChangePoint = range.getMaxAddress().addNoWrap(1);
		}
		catch (AddressOverflowException e) {
			// end of space
		}
	}
Get next (i.e., fall-through) context register value in active flow.
Internal state may be updated to track next future context change point.
@param address
@param futureStateMap
@param startOfFlow
@return
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/disassemble/DisassemblerContextImpl.java