Make elaborator generic

Author: compiler-errors

clippy_lints/src/needless_pass_by_value.rs

@@ -122,7 +122,7 @@ impl<'tcx> LateLintPass<'tcx> for NeedlessPassByValue {
 
         let sized_trait = need!(cx.tcx.lang_items().sized_trait());
 
-        let preds = traits::elaborate_predicates(cx.tcx, cx.param_env.caller_bounds().iter())
+        let preds = traits::elaborate(cx.tcx, cx.param_env.caller_bounds().iter())
             .filter(|p| !p.is_global())
             .filter_map(|pred| {
                 // Note that we do not want to deal with qualified predicates here.

clippy_utils/src/lib.rs

@@ -2104,7 +2104,7 @@ pub fn fn_has_unsatisfiable_preds(cx: &LateContext<'_>, did: DefId) -> bool {
         .filter_map(|(p, _)| if p.is_global() { Some(*p) } else { None });
     traits::impossible_predicates(
         cx.tcx,
-        traits::elaborate_predicates(cx.tcx, predicates)
+        traits::elaborate(cx.tcx, predicates)
             .collect::<Vec<_>>(),
     )
 }