Improve missing_abi lint This is for the migration lint for https://github.com/rust-lang/rfcs/pull/3722 It is not yet marked as an edition migration lint, because `Edition2027` doesn't exist yet. The lint now includes a machine applicable suggestion: ``` warning: extern declarations without an explicit ABI are deprecated --> src/main.rs:3:1 | 3 | extern fn a() {} | ^^^^^^ help: explicitly specify the C ABI: `extern "C"` | ``` |
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| COMPILER_TESTS.md | ||