3 files changed, 16 insertions, 23 deletions
diff --git a/compiler/rustc_hir/src/definitions.rs b/compiler/rustc_hir/src/definitions.rs
index 98b41187f11..f93b9e5af53 100644
--- a/compiler/rustc_hir/src/definitions.rs
+++ b/compiler/rustc_hir/src/definitions.rs
@@ -309,6 +309,8 @@ pub enum DefPathData {
     /// An existential `impl Trait` type node.
     /// Argument position `impl Trait` have a `TypeNs` with their pretty-printed name.
     OpaqueTy,
+    /// Used for remapped captured lifetimes in an existential `impl Trait` type node.
+    OpaqueLifetime(Symbol),
     /// An anonymous associated type from an RPITIT. The symbol refers to the name of the method
     /// that defined the type.
     AnonAssocTy(Symbol),
@@ -445,7 +447,8 @@ impl DefPathData {
     pub fn get_opt_name(&self) -> Option<Symbol> {
         use self::DefPathData::*;
         match *self {
-            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name) => Some(name),
+            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name)
+            | OpaqueLifetime(name) => Some(name),
 
             Impl
             | ForeignMod
@@ -465,9 +468,8 @@ impl DefPathData {
     fn hashed_symbol(&self) -> Option<Symbol> {
         use self::DefPathData::*;
         match *self {
-            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name) | AnonAssocTy(name) => {
-                Some(name)
-            }
+            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name) | AnonAssocTy(name)
+            | OpaqueLifetime(name) => Some(name),
 
             Impl
             | ForeignMod
@@ -486,9 +488,8 @@ impl DefPathData {
     pub fn name(&self) -> DefPathDataName {
         use self::DefPathData::*;
         match *self {
-            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name) => {
-                DefPathDataName::Named(name)
-            }
+            TypeNs(name) | ValueNs(name) | MacroNs(name) | LifetimeNs(name)
+            | OpaqueLifetime(name) => DefPathDataName::Named(name),
             // Note that this does not show up in user print-outs.
             CrateRoot => DefPathDataName::Anon { namespace: kw::Crate },
             Impl => DefPathDataName::Anon { namespace: kw::Impl },
diff --git a/compiler/rustc_hir/src/hir/tests.rs b/compiler/rustc_hir/src/hir/tests.rs
index 18f8c523f9d..8684adee29c 100644
--- a/compiler/rustc_hir/src/hir/tests.rs
+++ b/compiler/rustc_hir/src/hir/tests.rs
@@ -50,21 +50,14 @@ fn trait_object_roundtrips() {
 }
 
 fn trait_object_roundtrips_impl(syntax: TraitObjectSyntax) {
-    let unambig = TyKind::TraitObject::<'_, ()>(
-        &[],
-        TaggedRef::new(
-            &const {
-                Lifetime {
-                    hir_id: HirId::INVALID,
-                    ident: Ident::new(sym::name, DUMMY_SP),
-                    kind: LifetimeKind::Static,
-                    source: LifetimeSource::Other,
-                    syntax: LifetimeSyntax::Hidden,
-                }
-            },
-            syntax,
-        ),
-    );
+    let lt = Lifetime {
+        hir_id: HirId::INVALID,
+        ident: Ident::new(sym::name, DUMMY_SP),
+        kind: LifetimeKind::Static,
+        source: LifetimeSource::Other,
+        syntax: LifetimeSyntax::Hidden,
+    };
+    let unambig = TyKind::TraitObject::<'_, ()>(&[], TaggedRef::new(&lt, syntax));
     let unambig_to_ambig = unsafe { std::mem::transmute::<_, TyKind<'_, AmbigArg>>(unambig) };
 
     match unambig_to_ambig {
diff --git a/compiler/rustc_hir/src/lib.rs b/compiler/rustc_hir/src/lib.rs
index 5533920aee4..7a5ff890689 100644
--- a/compiler/rustc_hir/src/lib.rs
+++ b/compiler/rustc_hir/src/lib.rs
@@ -4,7 +4,6 @@
 
 // tidy-alphabetical-start
 #![allow(internal_features)]
-#![cfg_attr(bootstrap, feature(let_chains))]
 #![feature(associated_type_defaults)]
 #![feature(box_patterns)]
 #![feature(closure_track_caller)]