[cts.https.html?q=webgpu:shader,execution,expression,unary,af_arithmetic:negation:*]
  implementation-status: backlog
  [:inputSource="const";vectorize="_undef_"]
    expected: FAIL

  [:inputSource="const";vectorize=2]
    expected: FAIL

  [:inputSource="const";vectorize=3]
    expected: FAIL

  [:inputSource="const";vectorize=4]
    expected: FAIL
