Reduce string trashing.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@104223 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MachObjectWriter.cpp b/lib/MC/MachObjectWriter.cpp
index 5a4bb7a..9bcb93e 100644
--- a/lib/MC/MachObjectWriter.cpp
+++ b/lib/MC/MachObjectWriter.cpp
@@ -170,8 +170,8 @@
 
     // Support lexicographic sorting.
     bool operator<(const MachSymbolData &RHS) const {
-      const std::string &Name = SymbolData->getSymbol().getName();
-      return Name < RHS.SymbolData->getSymbol().getName();
+      return SymbolData->getSymbol().getName() <
+             RHS.SymbolData->getSymbol().getName();
     }
   };