[clang-format] Use a reference in loop variable; NFC

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@297455 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Format/UnwrappedLineParser.cpp b/lib/Format/UnwrappedLineParser.cpp
index 6590f38bda03f6b4ac0f56b1aba99a37f8cf19b3..25bc99118f8e9ecbeb822e9193634de68a7ca83f 100644 (file)
--- a/lib/Format/UnwrappedLineParser.cpp
+++ b/lib/Format/UnwrappedLineParser.cpp
@@ -2155,7 +2155,7 @@ static bool continuesLineComment(const FormatToken &FormatTok,
   // Scan for '{//'. If found, use the column of '{' as a min column for line
   // comment section continuation.
   const FormatToken *PreviousToken = nullptr;
-  for (const UnwrappedLineNode Node : Line.Tokens) {
+  for (const UnwrappedLineNode &Node : Line.Tokens) {
     if (PreviousToken && PreviousToken->is(tok::l_brace) &&
         isLineComment(*Node.Tok)) {
       MinColumnToken = PreviousToken;