[shaders-with-invariance.html]
  bug: https://github.com/servo/servo/issues/20601
  [WebGL test #17: [unexpected link status\] vertex shader with invariant varying and fragment shader with invariant (global setting) varying must succeed]
    expected: FAIL

  [WebGL test #9: [unexpected link status\] vertex shader with variant gl_Position and fragment shader with invariant gl_FragCoord must fail]
    expected: FAIL

  [WebGL test #12: [unexpected link status\] vertex shader with variant gl_PointSize and fragment shader with invariant gl_PointCoord must fail]
    expected: FAIL

  [WebGL test #3: [unexpected link status\] vertex shader with invariant (global setting) varying and fragment shader with invariant varying must succeed]
    expected:
      if os == "mac": FAIL

  [WebGL test #2: [unexpected link status\] vertex shader with invariant (global setting) varying and fragment shader with variant varying must fail]
    expected:
      if os == "mac": FAIL

  [WebGL test #8: [unexpected link status\] vertex shader with invariant gl_Position and fragment shader with invariant gl_FragCoord must succeed]
    expected:
      if os == "mac": FAIL