Auto merge of #123372 - GuillaumeGomez:rollup-nwxdzev, r=GuillaumeGomez

Rollup of 4 pull requests

Successful merges:

 - #122614 (rustdoc-search: shard the search result descriptions)
 - #123338 (Update to new browser-ui-test version)
 - #123366 (Minor by_move_body impl cleanups)
 - #123371 (Remove dangling `.mir.stderr` and `.thir.stderr` test files)

r? `@ghost`
`@rustbot` modify labels: rollup