Use StringRef in CGDebugInfo::EmitFunctionStart.


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@90856 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.cpp b/lib/CodeGen/CodeGenFunction.cpp
index 78aa956..4b32999 100644
--- a/lib/CodeGen/CodeGenFunction.cpp
+++ b/lib/CodeGen/CodeGenFunction.cpp
@@ -194,10 +194,7 @@
       DI->EmitFunctionStart(CGM.getMangledName(GD), FnType, CurFn, Builder);
     } else {
       // Just use LLVM function name.
-
-      // FIXME: Remove unnecessary conversion to std::string when API settles.
-      DI->EmitFunctionStart(std::string(Fn->getName()).c_str(),
-                            FnType, CurFn, Builder);
+      DI->EmitFunctionStart(Fn->getName(), FnType, CurFn, Builder);
     }
   }