Tests that when a watch times out and is cleared from the error callback, there is no crash. This a regression test for https://bugs.webkit.org/show_bug.cgi?id=32111.
On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE".
PASS successfullyParsed is true
PASS error.code is error.TIMEOUT
PASS error.message is "Timeout expired"
TEST COMPLETE