|print-width--------------------------------------------------------------------|

In children array,

it should not add Whitespace Trim Characters (WTC) if the liquid drop does not
break on a new line
<div>{{ 'hello' }}</div>

it should add wtc if the liquid drop breaks on a new line, the previous/next
characters were not spaces, and the parent node is leading/trailing whitespace
sensitive.
<span>
  {{- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' -}}
</span>

it should not add wtc if the liquid drop breaks on a new line and the
previous/next characters were spaces
<div>
  {{ 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' }}
</div>

It should add wtc to the left of a br, but not to the right (as per prettier/language-html)
printWidth: 20
<span>
  {{- some_drop -}}
  <br>
  {{ some_drop -}}
</span>

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In paragraphs,

it should add wtc if the liquid drop breaks next to a character (but not if not)
<div>
  Hey
  {{ 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' }},
  how are you doing?
</div>