From 97668a558955ded299db6ef145933be7677e7fbc Mon Sep 17 00:00:00 2001
From: Michael Goulet <michael@errs.io>
Date: Thu, 8 Sep 2022 02:42:00 +0000
Subject: [PATCH] We can print futures with {integer} too

---
 compiler/rustc_middle/src/ty/print/pretty.rs                    | 2 +-
 .../ui/suggestions/expected-boxed-future-isnt-pinned.stderr     | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/compiler/rustc_middle/src/ty/print/pretty.rs b/compiler/rustc_middle/src/ty/print/pretty.rs
index b46813e08f1..979a72d400f 100644
--- a/compiler/rustc_middle/src/ty/print/pretty.rs
+++ b/compiler/rustc_middle/src/ty/print/pretty.rs
@@ -923,7 +923,7 @@ fn pretty_print_opaque_impl_type(
                         {
                             if let ty::Generator(_, substs, _) = substs.type_at(0).kind() {
                                 let return_ty = substs.as_generator().return_ty();
-                                if !return_ty.is_ty_infer() {
+                                if !return_ty.is_ty_var() {
                                     return_ty.into()
                                 } else {
                                     continue;
diff --git a/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr b/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr
index e43a4e79bfe..77cef485f30 100644
--- a/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr
+++ b/src/test/ui/suggestions/expected-boxed-future-isnt-pinned.stderr
@@ -91,7 +91,7 @@ LL |   pub const fn from_generator<T>(gen: T) -> impl Future<Output = T::Return>
    |                                             ------------------------------- the found opaque type
    |
    = note:   expected struct `Pin<Box<(dyn Future<Output = i32> + Send + 'static)>>`
-           found opaque type `impl Future`
+           found opaque type `impl Future<Output = {integer}>`
 help: you need to pin and box this expression
    |
 LL ~     Box::pin(async {