add EarlyBinder to return type of collect_return_position_impl_trait_in_trait_tys query; remove bound_X version

compiler/rustc_query_impl/src/on_disk_cache.rs

@@ -806,7 +806,9 @@ impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx UnordSet<LocalDefId>
     }
 }
 
-impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>> for &'tcx FxHashMap<DefId, Ty<'tcx>> {
+impl<'a, 'tcx> Decodable<CacheDecoder<'a, 'tcx>>
+    for &'tcx FxHashMap<DefId, ty::EarlyBinder<Ty<'tcx>>>
+{
     fn decode(d: &mut CacheDecoder<'a, 'tcx>) -> Self {
         RefDecodable::decode(d)
     }