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Rollup merge of #122120 - fmease:sugg-assoc-ty-bound-on-eq-bound, r=compiler-errors

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Suggest associated type bounds on problematic associated equality bounds

Fixes #105056. TL;DR: Suggest `Trait<Ty: Bound>` on `Trait<Ty = Bound>` in Rust >=2021.

~~Blocked on #122055 (stabilization of `associated_type_bounds`), I'd say.~~ (merged)
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Matthias Krüger 2024-03-26 21:23:47 +01:00 • committed by GitHub
commit ff8cdc9e14
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10 changed files with 287 additions and 99 deletions
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compiler/rustc_parse/messages.ftl
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@ -14,10 +14,6 @@ parse_array_index_offset_of = array indexing not supported in offset_of
parse_assignment_else_not_allowed = <assignment> ... else {"{"} ... {"}"} is not allowed
parse_assoc_lifetime = associated lifetimes are not supported
.label = the lifetime is given here
.help = if you meant to specify a trait object, write `dyn Trait + 'lifetime`
parse_associated_static_item_not_allowed = associated `static` items are not allowed
parse_async_block_in_2015 = `async` blocks are only allowed in Rust 2018 or later
@ -445,6 +441,12 @@ parse_lifetime_in_borrow_expression = borrow expressions cannot be annotated wit
.suggestion = remove the lifetime annotation
.label = annotated with lifetime here
parse_lifetime_in_eq_constraint = lifetimes are not permitted in this context
.label = lifetime is not allowed here
.context_label = this introduces an associated item binding
.help = if you meant to specify a trait object, write `dyn /* Trait */ + {$lifetime}`
.colon_sugg = you might have meant to write a bound here
parse_lone_slash = invalid trailing slash in literal
.label = {parse_lone_slash}