Address PR feedback

Author: BGR360

compiler/rustc_typeck/src/collect.rs

@@ -2438,7 +2438,7 @@ fn predicates_from_bound<'tcx>(
     bound_vars: &'tcx ty::List<ty::BoundVariableKind>,
 ) -> Vec<(ty::Predicate<'tcx>, Span)> {
     let mut bounds = Bounds::default();
-    astconv.add_bounds(param_ty, std::array::IntoIter::new([bound]), &mut bounds, bound_vars);
+    astconv.add_bounds(param_ty, [bound].into_iter(), &mut bounds, bound_vars);
     bounds.predicates(astconv.tcx(), param_ty)
 }
 

src/test/ui/higher-rank-trait-bounds/issue-88586-hr-self-outlives-in-trait-def.rs

@@ -1,7 +1,7 @@
 // Regression test for #88586: a higher-ranked outlives bound on Self in a trait
 // definition caused an ICE when debug_assertions were enabled.
 //
-// The error output is incidentally unhelpful; this should be improved.
+// FIXME: The error output in the absence of the ICE is unhelpful; this should be improved.
 
 trait A where for<'a> Self: 'a
 //~^ ERROR the parameter type `Self` may not live long enough