Used to have this:

<EuiCode>
  <EuiHighlight search='ce9'>abce9d</EuiHighlight>
</EuiCode>

But now EuiCode complains about not having a string passed as children. Similar but different use case:

<EuiCode>
  <del>abce9d</del>
</EuiCode>

We had to swap EuiCode and del in this case, and that causes the strikethrough text to extend past the boundaries of the EuiCode box, which isn't as clean as it was before in terms of look & feel