Do not recurse into const generic args when resolving self lifetime elision.

compiler/rustc_resolve/src/late.rs

@@ -2075,6 +2075,10 @@ impl<'a: 'ast, 'b, 'ast, 'tcx> LateResolutionVisitor<'a, 'b, 'ast, 'tcx> {
                 }
                 visit::walk_ty(self, ty)
             }
+
+            // A type may have an expression as a const generic argument.
+            // We do not want to recurse into those.
+            fn visit_expr(&mut self, _: &'a Expr) {}
         }
 
         let impl_self = self