Auto merge of #83424 - cjgillot:noparam, r=lcnr

GenericParam does not need to be a HIR owner.

The special case is not required.

Universal impl traits design to regular generic parameters, and their content is owned by the enclosing item.

Existential (and opaque) impl traits generate their own enclosing item, and are collected through it.

1 files changed, 0 insertions, 13 deletions

diff --git a/compiler/rustc_passes/src/hir_id_validator.rs b/compiler/rustc_passes/src/hir_id_validator.rs
index 79e3b5952ac..944a3097a61 100644
--- a/compiler/rustc_passes/src/hir_id_validator.rs
+++ b/compiler/rustc_passes/src/hir_id_validator.rs
@@ -172,17 +172,4 @@ impl<'a, 'hir> intravisit::Visitor<'hir> for HirIdValidator<'a, 'hir> {
         // we are currently in. So for those it's correct that they have a
         // different owner.
     }
-
-    fn visit_generic_param(&mut self, param: &'hir hir::GenericParam<'hir>) {
-        if let hir::GenericParamKind::Type {
-            synthetic: Some(hir::SyntheticTyParamKind::ImplTrait),
-            ..
-        } = param.kind
-        {
-            // Synthetic impl trait parameters are owned by the node of the desugared type.
-            // This means it is correct for them to have a different owner.
-        } else {
-            intravisit::walk_generic_param(self, param);
-        }
-    }
 }