Test traversing children using HTMLCollection while mutating DOM

On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".


PASS child.firstChild.innerText is "child 0"
PASS child.firstChild.innerText is "child 1"
PASS child.firstChild.innerText is "child 2"
PASS child.firstChild.innerText is "child 3"
PASS child.firstChild.innerText is "child 4"
PASS child is null
PASS successfullyParsed is true

TEST COMPLETE