Gate usages of dyn* and const closures in macros
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Mar 12, 2023
…iaskrgr Rollup of 8 pull requests Successful merges: - rust-lang#108651 (Forbid the use of `#[target_feature]` on `main`) - rust-lang#109009 (rustdoc: use restricted Damerau-Levenshtein distance for search) - rust-lang#109026 (Introduce `Rc::into_inner`, as a parallel to `Arc::into_inner`) - rust-lang#109029 (Gate usages of `dyn*` and const closures in macros) - rust-lang#109031 (Rename `config.toml.example` to `config.example.toml`) - rust-lang#109032 (Use `TyCtxt::trait_solver_next` in some places) - rust-lang#109047 (typo) - rust-lang#109052 (Add eslint check for rustdoc-gui tester) Failed merges: r? `@ghost` `@rustbot` modify labels: rollup
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We silently accepted
dyn*and const closures in macros as long as they didn't expand to anything containing these experimental features, unlike other gated features such asfor<'a>binders on closures, etc. Let's not do that, to make sure nobody begins relying on this.