Remove useless 'llvm::' qualifier from names like StringRef and others that are
brought into 'clang' namespace by clang/Basic/LLVM.h


git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@172323 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/ToolChains.cpp b/lib/Driver/ToolChains.cpp
index 03a01e3..53a620a 100644
--- a/lib/Driver/ToolChains.cpp
+++ b/lib/Driver/ToolChains.cpp
@@ -1646,7 +1646,7 @@
   // Select the default CPU (v4) if none was given or detection failed.
   Arg *A = GetLastHexagonArchArg (Args);
   if (A) {
-    llvm::StringRef WhichHexagon = A->getValue();
+    StringRef WhichHexagon = A->getValue();
     if (WhichHexagon.startswith("hexagon"))
       return WhichHexagon.substr(sizeof("hexagon") - 1);
     if (WhichHexagon != "")