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599b08ada8
make `rustc_attr_parsing` less dominant in the rustc crate graph It has/had a glob re-export of `rustc_attr_data_structures`, which is a crate much lower in the graph, and a lot of crates were using it *just* (or *mostly*) for that re-export, while they can rely on `rustc_attr_data_structures` directly. Previous graph:  Graph with this PR:  The first commit keeps the re-export, and just changes the dependency if possible. The second commit is the "breaking change" which removes the re-export, and "explicitly" adds the `rustc_attr_data_structures` dependency where needed. It also switches over some src/tools/*. The second commit is actually a lot more involved than I expected. Please let me know if it's a better idea to back it out and just keep the first commit. |
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|---|---|---|
| .. | ||
| mbe | ||
| base.rs | ||
| build.rs | ||
| config.rs | ||
| errors.rs | ||
| expand.rs | ||
| lib.rs | ||
| mbe.rs | ||
| module.rs | ||
| placeholders.rs | ||
| proc_macro_server.rs | ||
| proc_macro.rs | ||