Because it's only used in `rustc_mir_transform`. (Presumably it is currently in `rustc_middle` because lots of other MIR-related stuff is, but that's not a hard requirement.) And because `rustc_middle` is huge and it's always good to make it smaller. |
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| .. | ||
| src | ||
| Cargo.toml | ||
| messages.ftl | ||
| README.md | ||
For more information about how rustc works, see the rustc dev guide.