[llvm] [Support] Insertion operator should be forwarded, not moved (PR #152326)

[via llvm-commits]

https://github.com/AZero13 created https://github.com/llvm/llvm-project/pull/152326

It is a forwarding reference, after all.

>From 7f0f3b0350f62974644359fc1342f93ae81ff2ae Mon Sep 17 00:00:00 2001
From: AZero13 <gfunni234 at gmail.com>
Date: Wed, 6 Aug 2025 11:35:17 -0400
Subject: [PATCH] [Support] Insertion operator should be forwarded, not moved

It is a forwarding reference, after all.
---
 llvm/include/llvm/Support/raw_ostream.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/llvm/include/llvm/Support/raw_ostream.h b/llvm/include/llvm/Support/raw_ostream.h
index f87344e860518..01e4a1de86495 100644
--- a/llvm/include/llvm/Support/raw_ostream.h
+++ b/llvm/include/llvm/Support/raw_ostream.h
@@ -426,7 +426,7 @@ std::enable_if_t<!std::is_reference_v<OStream> &&
                  OStream &&>
 operator<<(OStream &&OS, const T &Value) {
   OS << Value;
-  return std::move(OS);
+  return std::forward<OStream>(OS);
 }
 
 /// An abstract base class for streams implementations that also support a