From a60363567015323a85b9ee890fd1076573e7d2b8 Mon Sep 17 00:00:00 2001
From: Maybe Waffle <waffle.lapkin@gmail.com>
Date: Tue, 22 Nov 2022 09:49:31 +0000
Subject: [PATCH] `rustc_arena`: remove a couple of `ref` patterns

---
 compiler/rustc_arena/src/tests.rs | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/compiler/rustc_arena/src/tests.rs b/compiler/rustc_arena/src/tests.rs
index ad61464343a4a..49a070badc6de 100644
--- a/compiler/rustc_arena/src/tests.rs
+++ b/compiler/rustc_arena/src/tests.rs
@@ -52,19 +52,15 @@ fn test_arena_alloc_nested() {
 
     impl<'a> Wrap<'a> {
         fn alloc_inner<F: Fn() -> Inner>(&self, f: F) -> &Inner {
-            let r: &EI<'_> = self.0.alloc(EI::I(f()));
-            if let &EI::I(ref i) = r {
-                i
-            } else {
-                panic!("mismatch");
+            match self.0.alloc(EI::I(f())) {
+                EI::I(i) => i,
+                _ => panic!("mismatch"),
             }
         }
         fn alloc_outer<F: Fn() -> Outer<'a>>(&self, f: F) -> &Outer<'_> {
-            let r: &EI<'_> = self.0.alloc(EI::O(f()));
-            if let &EI::O(ref o) = r {
-                o
-            } else {
-                panic!("mismatch");
+            match self.0.alloc(EI::O(f())) {
+                EI::O(o) => o,
+                _ => panic!("mismatch"),
             }
         }
     }