| Test the correctness of the backtracking optimizations with mixed case tag names in the selector. | |
| On success, you will see a series of "PASS" messages, followed by "TEST COMPLETE". | |
| PASS document.querySelectorAll("SIBLING.target + SIBLING + sibling ~ target").length is 1 | |
| PASS successfullyParsed is true | |
| TEST COMPLETE | |