public boolean isBadAddress(Varnode v) {
		return v.getAddress().equals(BAD_ADDRESS) || v.getSpace() == BAD_OFFSET_SPACEID;
	}
Check if this is a bad address, or offset from a bad address

@param v to check
@return true if should be treated as a constant for most purposes
Ghidra/Features/Base/src/main/java/ghidra/program/util/VarnodeContext.java