Variable set at the end of a loop gets flagged as unused

[chrisdp]

function convertKeyValueArrayToBase64(keyValueArray as Object) as String
	binaryByte = ""
	ba = createObject("roByteArray")
	topIndex = getLastIndex(keyValueArray)
	for i = 0 to topIndex
		item = keyValueArray[i]
		if getBooleanAtKeyPath(item, "value") then
			binaryByte = binaryByte + "1"
		else
			binaryByte = binaryByte + "0"
		end if

		if i = topIndex then
			' NOTE!!! THIS is opposite of updateKeyValueArrayFromBase64String() on purpose
			binaryByte = binaryByte + string(8 - binaryByte.len(), "0")
		end if

		if binaryByte.len() = 8 OR i = topIndex then
			ba.push(val(binaryByte, 2))
			binaryByte = ""
		end if
	end for
	base64String = ba.toBase64String()

	return base64String
end function

In the above function the binaryByte = "" near the end of the loop is getting flagged with the following:

The same thing can be see in this code with focusedChild in the while loop

function getCurrentFocusedNode(parent = Invalid as Object, maxDepth = 30 as Integer) as Dynamic
	if isNode(parent) then
		node = parent
	else
		node = getScene()
	end if

	focusedChild = node.focusedChild

	if isNode(focusedChild) then
		while maxDepth > 0 AND focusedChild <> Invalid AND NOT node.isSameNode(focusedChild)
			node = focusedChild
			focusedChild = node.focusedChild
			maxDepth--
		end while

		return node
	end if

	return Invalid
end function

[elsassph]

Same within a goto loop.