bjoernager/rust
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Rollup merge of #89413 - matthewjasper:spec-marker-fix, r=nikomatsakis

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Correctly handle supertraits for min_specialization

Supertraits of specialization markers could circumvent checks for
min_specialization. Elaborating predicates prevents this.

r? ````@nikomatsakis````
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Jubilee 2021-10-04 21:12:35 -07:00 • committed by GitHub
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20 changed files with 147 additions and 101 deletions
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4
compiler/rustc_trait_selection/src/traits/mod.rs
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@ -64,7 +64,9 @@ pub use self::specialize::specialization_graph::FutureCompatOverlapErrorKind;
pub use self::specialize::{specialization_graph, translate_substs, OverlapError};
pub use self::structural_match::search_for_structural_match_violation;
pub use self::structural_match::NonStructuralMatchTy;
pub use self::util::{elaborate_predicates, elaborate_trait_ref, elaborate_trait_refs};
pub use self::util::{
elaborate_obligations, elaborate_predicates, elaborate_trait_ref, elaborate_trait_refs,
};
pub use self::util::{expand_trait_aliases, TraitAliasExpander};
pub use self::util::{
get_vtable_index_of_object_method, impl_item_is_final, predicate_for_trait_def, upcast_choices,