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Auto merge of #118725 - lcnr:normalizes-to-projection-split-3, r=BoxyUwU

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split `NormalizesTo` out of `Projection` 3

third attempt at #112658. Rebasing #116262 is very annoying, so I am doing it again from scratch. We should now be able to merge it without regressing anything as we handle occurs check failures involving aliases correctly since #117088.

see https://hackmd.io/ktEL8knTSYmtdfrMMnA-Hg

fixes https://github.com/rust-lang/trait-system-refactor-initiative/issues/1

r? `@compiler-errors`
This commit is contained in:
bors 2023-12-08 02:28:10 +00:00
commit 21982a4383
39 changed files with 310 additions and 189 deletions
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compiler/rustc_smir/src/rustc_smir/convert/ty.rs
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@ -601,6 +601,7 @@ impl<'tcx> Stable<'tcx> for ty::PredicateKind<'tcx> {
stable_mir::ty::PredicateKind::ConstEquate(a.stable(tables), b.stable(tables))
}
PredicateKind::Ambiguous => stable_mir::ty::PredicateKind::Ambiguous,
PredicateKind::NormalizesTo(_pred) => unimplemented!(),
PredicateKind::AliasRelate(a, b, alias_relation_direction) => {
stable_mir::ty::PredicateKind::AliasRelate(
a.unpack().stable(tables),