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Auto merge of #108700 - spastorino:new-rpitit-impl-side-2, r=compiler-errors

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Make RPITITs simple cases work when using lower_impl_trait_in_trait_to_assoc_ty

r? `@compiler-errors`

It's probably best reviewed commit by commit.
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bors 2023-03-12 00:49:35 +00:00
commit 9455a5591b
11 changed files with 164 additions and 35 deletions
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6
compiler/rustc_passes/src/dead.rs
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@ -243,6 +243,12 @@ impl<'tcx> MarkSymbolVisitor<'tcx> {
continue;
}
// Avoid accessing the HIR for the synthesized associated type generated for RPITITs.
if self.tcx.opt_rpitit_info(id).is_some() {
self.live_symbols.insert(id);
continue;
}
// in the case of tuple struct constructors we want to check the item, not the generated
// tuple struct constructor function
let id = self.struct_constructors.get(&id).copied().unwrap_or(id);