Nicholas Nethercote 5c462a32bd Remove support for compiler plugins. ... They've been deprecated for four years. This commit includes the following changes. - It eliminates the `rustc_plugin_impl` crate. - It changes the language used for lints in `compiler/rustc_driver_impl/src/lib.rs` and `compiler/rustc_lint/src/context.rs`. External lints are now called "loaded" lints, rather than "plugins" to avoid confusion with the old plugins. This only has a tiny effect on the output of `-W help`. - E0457 and E0498 are no longer used. - E0463 is narrowed, now only relating to unfound crates, not plugins. - The `plugin` feature was moved from "active" to "removed". - It removes the entire plugins chapter from the unstable book. - It removes quite a few tests, mostly all of those in `tests/ui-fulldeps/plugin/`. Closes #29597.		2023-11-04 08:50:46 +11:00
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src	Remove support for compiler plugins.	2023-11-04 08:50:46 +11:00
Cargo.toml	Clean up rustc_*/Cargo.toml.	2023-10-30 08:46:02 +11:00