Update clang/lib/Driver/ToolChains/HLSL.cpp

Co-authored-by: Chris B <[email protected]>

Author: s-perron

clang/lib/Driver/ToolChains/HLSL.cpp

@@ -217,7 +217,7 @@ void getSpirvExtOperand(llvm::StringRef SpvExtensionArg, raw_ostream &out) {
   if (SpvExtensionArg.compare_insensitive("DXC") == 0) {
     bool first = true;
     std::string Operand;
-    for (llvm::StringRef E : DxcSupportedExtensions) {
+    for (StringRef E : DxcSupportedExtensions) {
       if (!first)
         out << ",";
       else