[mixin-parsing.html]
  [@layer (statement) is invalid in @mixin]
    expected: FAIL

  [@layer (block) is invalid in @mixin]
    expected: FAIL

  [@layer (anonymous) is invalid in @mixin]
    expected: FAIL

  [@layer (statement) within @result is valid in @mixin]
    expected: FAIL

  [@layer (block) within @result is valid in @mixin]
    expected: FAIL

  [@layer (anonymous) within @result is valid in @mixin]
    expected: FAIL

  [style rule is valid in @mixin]
    expected: FAIL

  [style rule (relative) is valid in @mixin]
    expected: FAIL

  [@media is valid in @mixin]
    expected: FAIL

  [@supports is valid in @mixin]
    expected: FAIL

  [@container is valid in @mixin]
    expected: FAIL

  [@starting-style is valid in @mixin]
    expected: FAIL

  [@scope is valid in @mixin]
    expected: FAIL

  [@scope (implicit) is valid in @mixin]
    expected: FAIL

  [@layer is dropped within @result (statement)]
    expected: FAIL

  [@layer is dropped within @result (block)]
    expected: FAIL

  [@layer is dropped within a nested style rule]
    expected: FAIL

  [@layer is dropped within @media]
    expected: FAIL

  [@layer is dropped within @supports]
    expected: FAIL

  [@layer is dropped within @container]
    expected: FAIL

  [@layer is dropped within @scope]
    expected: FAIL

  [@layer is dropped within a body-level @media]
    expected: FAIL

  [@layer is dropped within a body-level @supports]
    expected: FAIL

  [@layer is dropped within a body-level @container]
    expected: FAIL