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Place tail expression behind terminating scope This PR implements #123739 so that we can do further experiments in nightly. A little rewrite has been applied to `for await` lowering. It was previously `unsafe { Pin::unchecked_new(into_async_iter(..)) }`. Under the edition 2024 rule, however, `into_async_iter` gets dropped at the end of the `unsafe` block. This presumably the first Edition 2024 migration rule goes by hoisting `into_async_iter(..)` into `match` one level above, so it now looks like the following. ```rust match into_async_iter($iter_expr) { ref mut iter => match unsafe { Pin::unchecked_new(iter) } { ... } } ``` |
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| .. | ||
| analyze_source_file | ||
| edit_distance | ||
| source_map | ||
| symbol | ||
| analyze_source_file.rs | ||
| caching_source_map_view.rs | ||
| def_id.rs | ||
| edit_distance.rs | ||
| edition.rs | ||
| fatal_error.rs | ||
| hygiene.rs | ||
| lib.rs | ||
| profiling.rs | ||
| source_map.rs | ||
| span_encoding.rs | ||
| symbol.rs | ||
| tests.rs | ||