From 47fe696d8f247d91c67068c25bb91767713aeb60 Mon Sep 17 00:00:00 2001
From: Ellen <supbscripter@gmail.com>
Date: Tue, 8 Jun 2021 09:07:52 +0100
Subject: [PATCH] use non_erasable_generics

---
 compiler/rustc_middle/src/ty/diagnostics.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/compiler/rustc_middle/src/ty/diagnostics.rs b/compiler/rustc_middle/src/ty/diagnostics.rs
index 866df2958a0..bfb4c0cb538 100644
--- a/compiler/rustc_middle/src/ty/diagnostics.rs
+++ b/compiler/rustc_middle/src/ty/diagnostics.rs
@@ -54,7 +54,7 @@ impl<'tcx> TyS<'tcx> {
     /// ADTs with no type arguments.
     pub fn is_simple_text(&self) -> bool {
         match self.kind() {
-            Adt(_, substs) => substs.types().next().is_none() && substs.consts().next().is_none(),
+            Adt(_, substs) => substs.non_erasable_generics().next().is_none(),
             Ref(_, ty, _) => ty.is_simple_text(),
             _ => self.is_simple_ty(),
         }