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Auto merge of #106253 - nbdd0121:upcast, r=compiler-errors

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Skip possible where_clause_object_safety lints when checking `multiple_supertrait_upcastable`

Fix #106247

To achieve this, I lifted the `WhereClauseReferencesSelf` out from `object_safety_violations` and move it into `is_object_safe` (which is changed to a new query).

cc `@dtolnay`
r? `@compiler-errors`
This commit is contained in:
bors 2023-01-29 10:20:25 +00:00
commit d117135f5a
26 changed files with 219 additions and 28 deletions
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compiler/rustc_trait_selection/src/solve/mod.rs
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@ -361,7 +361,7 @@ impl<'a, 'tcx> EvalCtxt<'a, 'tcx> {
}
fn compute_object_safe_goal(&mut self, trait_def_id: DefId) -> QueryResult<'tcx> {
if self.tcx().is_object_safe(trait_def_id) {
if self.tcx().check_is_object_safe(trait_def_id) {
self.make_canonical_response(Certainty::Yes)
} else {
Err(NoSolution)