This renames the ID, which is only used in search results, to
`#search-tabs`. Also changes the `.count` to a span, so it doesn't need its
display mode to be overridden.

The rules `overflow:hidden` and `text-overflow:ellipses` only have an
effect if overflow occurs, which cannot happen because it will just line
wrap instead.

These rules definitely became obsolete by
rust-lang#77699, when the stylesheet was
decidedly changed to have line wrapping in short docblocks, but given the
bug it was fixing, this probably got broken earlier.

…illaumeGomez

docs/test: add UI test and long-form error docs for E0462

Another UI test/ docs combo.

r? `@GuillaumeGomez`

…-lifetimes, r=eholk

rustc: Remove needless lifetimes

…=GuillaumeGomez

rustdoc: use a more evocative name for CSS/JS `#titles`

This renames the ID, which is only used in search results, to `#search-tabs`. Also changes the `.count` to a span, so it doesn't need its display mode to be overridden.

fix vec::IntoIter::drop on high-alignment ZST

This fixes a soundness bug: IntoIter would call `drop_in_place` on an insufficiently aligned pointer. So if a ZST with alignment greater 1 had drop glue, that would be called with an unaligned reference. Since rust-lang#103957, Miri checks alignment even if the type does not have drop glue, which is how this bug was found.

r? `@thomcc`

…element, r=notriddle

Use correct CSS pseudo-element selector

Pseudo-element should use "::" to not be confused with pseudo selectors (nice explanation here: https://css-tricks.com/to-double-colon-or-not-do-double-colon/).

r? `@notriddle`

…-overflow, r=GuillaumeGomez

rustdoc: remove no-op CSS from `.docblock-short`

The rules `overflow:hidden` and `text-overflow:ellipses` only have an effect if overflow occurs, which cannot happen because it will just line wrap instead.

These rules definitely became obsolete by rust-lang#77699, when the stylesheet was decidedly changed to have line wrapping in short docblocks, but given the bug it was fixing, this probably got broken earlier.