[llvm] [NFC][LLVM][Support] Misc code cleanup in ScopedPrinter (PR #161462)

[Rahul Joshi via llvm-commits]

https://github.com/jurahul updated https://github.com/llvm/llvm-project/pull/161462

>From 46000da42cb939b4525649c2b1b7096ce3bbf837 Mon Sep 17 00:00:00 2001
From: Rahul Joshi <rjoshi at nvidia.com>
Date: Tue, 30 Sep 2025 17:12:28 -0700
Subject: [PATCH] [NFC][LLVM][Support] Misc code cleanup in ScopedPrinter

- Use character instead of a single character string.
- Add missing header to ScopedPrinter.cpp and adjust the code to
  conform to LLVM coding standards.
---
 llvm/lib/Support/ScopedPrinter.cpp | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/llvm/lib/Support/ScopedPrinter.cpp b/llvm/lib/Support/ScopedPrinter.cpp
index a17e397c0aa58..9eadb456ab1a4 100644
--- a/llvm/lib/Support/ScopedPrinter.cpp
+++ b/llvm/lib/Support/ScopedPrinter.cpp
@@ -1,12 +1,22 @@
-#include "llvm/Support/ScopedPrinter.h"
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Implementation of ScopedPrinter.
+//
+//===----------------------------------------------------------------------===//
 
+#include "llvm/Support/ScopedPrinter.h"
 #include "llvm/Support/Format.h"
 
+using namespace llvm;
 using namespace llvm::support;
 
-namespace llvm {
-
-raw_ostream &operator<<(raw_ostream &OS, const HexNumber &Value) {
+raw_ostream &llvm::operator<<(raw_ostream &OS, const HexNumber &Value) {
   OS << "0x" << utohexstr(Value.Value);
   return OS;
 }
@@ -45,5 +55,3 @@ JSONScopedPrinter::JSONScopedPrinter(
   if (this->OuterScope)
     this->OuterScope->setPrinter(*this);
 }
-
-} // namespace llvm