Pass StringRef by value.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86251 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCSymbol.cpp b/lib/MC/MCSymbol.cpp
index 86ff3f3..b145d07 100644
--- a/lib/MC/MCSymbol.cpp
+++ b/lib/MC/MCSymbol.cpp
@@ -35,7 +35,7 @@
/// NameNeedsEscaping - Return true if the identifier \arg Str needs quotes
/// for this assembler.
-static bool NameNeedsEscaping(const StringRef &Str, const MCAsmInfo &MAI) {
+static bool NameNeedsEscaping(StringRef Str, const MCAsmInfo &MAI) {
assert(!Str.empty() && "Cannot create an empty MCSymbol");
// If the first character is a number and the target does not allow this, we