From 465b86253ce828e215d564fde53adf8742f0e3f6 Mon Sep 17 00:00:00 2001
From: Matthew Jasper <mjjasper1@gmail.com>
Date: Sat, 1 Feb 2020 11:41:58 +0000
Subject: [PATCH] Use correct `ParamEnv` in `Instance::resolve`

---
 src/librustc/ty/instance.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/librustc/ty/instance.rs b/src/librustc/ty/instance.rs
index 51a18f8eae27..f73e069df36c 100644
--- a/src/librustc/ty/instance.rs
+++ b/src/librustc/ty/instance.rs
@@ -285,7 +285,7 @@ impl<'tcx> Instance<'tcx> {
                 _ => {
                     if Some(def_id) == tcx.lang_items().drop_in_place_fn() {
                         let ty = substs.type_at(0);
-                        if ty.needs_drop(tcx, ty::ParamEnv::reveal_all()) {
+                        if ty.needs_drop(tcx, param_env.with_reveal_all()) {
                             debug!(" => nontrivial drop glue");
                             ty::InstanceDef::DropGlue(def_id, Some(ty))
                         } else {