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b15e2c129e
Make `dyn*` casts into a coercion, allow `dyn*` upcasting I know that `dyn*` is likely not going to be a feature exposed to surface Rust, but this makes it slightly more ergonomic to write tests for these types anyways. ... and this was just fun to implement anyways. 1. Make `dyn*` into a coercion instead of a cast 2. Enable `dyn*` upcasting since we basically get it for free 3. Simplify some of the cast checking code since we're using the coercion path now r? `@eholk` but feel free to reassign cc `@nikomatsakis` and `@tmandry` who might care about making `dyn*` casts into a coercion |
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| .. | ||
| astconv | ||
| check | ||
| coherence | ||
| collect | ||
| impl_wf_check | ||
| outlives | ||
| structured_errors | ||
| variance | ||
| bounds.rs | ||
| check_unused.rs | ||
| collect.rs | ||
| constrained_generic_params.rs | ||
| errors.rs | ||
| expr_use_visitor.rs | ||
| hir_wf_check.rs | ||
| impl_wf_check.rs | ||
| lib.rs | ||
| mem_categorization.rs | ||
| structured_errors.rs | ||