Rustdoc: consistentize sidebar HTML generation

[jsha]

In the Rustdoc sidebar (e.g.), some sections (like Methods) are organized like:

<div class="block items">
  <h3>Some Title</h3>
  <div class="sidebar-links">
    <a>foo</a>
    <a>bar</a>
  </div>
</div>

Others, under "In <module>", like Structs or Functions, are organized like:

<div class="block fn">
  <h3>Some Title</h3>
  <ul>
    <li><a>foo</a></li>
    <li><a>bar</a></li>
  </ul>
</div>

The latter is semantically preferable. We should consolidate on using <ul> / <li> in both types of sidebar sections, to make maintaining our CSS easier and more consistent.

[GuillaumeGomez]

It seems it has been done already (can't find the PR though...). Closing.

[jsha]

Hasn't been done yet. See for instance this example in https://doc.rust-lang.org/nightly/std/fs/struct.File.html:

It's all plain links; we'd prefer them to be a list.

[GuillaumeGomez]

Oh I see, missed that. Reopening and I'll do it too.