Use get_many_mut to reduce the cost of setting up check cfg values This PR use the newly added [`get_many_mut`](https://github.com/rust-lang/rust/issues/97601) function in [`HashMap`](https://doc.rust-lang.org/nightly/std/collections/hash_map/struct.HashMap.html#method.get_many_mut) to reduce the cost of setting up the initial check cfg values. cc `@petrochenkov` |
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| .. | ||
| cgu_reuse_tracker.rs | ||
| code_stats.rs | ||
| config.rs | ||
| cstore.rs | ||
| filesearch.rs | ||
| lib.rs | ||
| options.rs | ||
| output.rs | ||
| parse.rs | ||
| search_paths.rs | ||
| session.rs | ||
| utils.rs | ||