Tests hidden node name computation as part of the #comp_labelledby portion of the AccName Name Computation algorithm.

## Testing with `display:none`

foo bar
foo bar baz
foo bar baz
foo bar baz
foo bar baz
foo bar baz

## Testing with `visibility:hidden`

foo bar
foo bar baz
foo bar baz
foo bar baz
foo bar baz
foo bar baz

## Testing with `visibility:collapse`

foo bar
foo bar baz
foo bar baz
foo bar baz
foo bar baz
foo bar baz

## Testing with `aria-hidden`

foo bar
foo bar baz
foo bar baz
foo bar baz

## Testing with `hidden` attribute

foo bar
foo bar baz
foo bar baz
foo bar baz
foo bar baz