message: Make TextureAspect match WebGPU
  It was changed from a bitmask to an enum. It isn't used in Dawn yet.
diff: ]
  },
  "texture aspect": {
  - "category": "bitmask",
  + "category": "enum",
  "values": [
  - {"value": 1, "name": "color"},
  - {"value": 2, "name": "depth"},
  - {"value": 4, "name": "stencil"}
  + {"value": 0, "name": "all"},
  + {"value": 1, "name": "stencil only"},
  + {"value": 2, "name": "depth only"}
  ]
  },
  "texture copy view": {
  