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authorbors <bors@rust-lang.org>2024-02-18 13:56:07 +0000
committerbors <bors@rust-lang.org>2024-02-18 13:56:07 +0000
commit8b21296b5db6d5724d6b8440dcf459fa82fd88b5 (patch)
tree65acaf8e7a0d42e30db5834ab49841ffe6ce1eb3 /compiler/rustc_session/src/parse.rs
parent6f726205a1b7992537ddec96c83f2b054b03e04f (diff)
parenta61126cef6c4083d57e22835033eb2eefdd31bac (diff)
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Auto merge of #117772 - surechen:for_117448, r=petrochenkov
Tracking import use types for more accurate redundant import checking

fixes #117448

By tracking import use types to check whether it is scope uses or the other situations like module-relative uses,  we can do more accurate redundant import checking.

For example unnecessary imports in std::prelude that can be eliminated:

```rust
use std::option::Option::Some;//~ WARNING the item `Some` is imported redundantly
use std::option::Option::None; //~ WARNING the item `None` is imported redundantly
```
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