From 298253af98db70ce5dd0294698dfb89cb3bd09ab Mon Sep 17 00:00:00 2001
From: Cameron Steffen <cam.steffen94@gmail.com>
Date: Thu, 27 Oct 2022 16:14:48 -0500
Subject: [PATCH] Specialize ToString for Symbol

---
 compiler/rustc_span/src/symbol.rs | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/compiler/rustc_span/src/symbol.rs b/compiler/rustc_span/src/symbol.rs
index 3fe79370c374d..7f16da52b4439 100644
--- a/compiler/rustc_span/src/symbol.rs
+++ b/compiler/rustc_span/src/symbol.rs
@@ -1901,6 +1901,13 @@ impl fmt::Display for Symbol {
     }
 }
 
+// takes advantage of `str::to_string` specialization
+impl ToString for Symbol {
+    fn to_string(&self) -> String {
+        self.as_str().to_string()
+    }
+}
+
 impl<S: Encoder> Encodable<S> for Symbol {
     default fn encode(&self, s: &mut S) {
         s.emit_str(self.as_str());