Update the code to the fact that StringSet now lives in llvm/ADT.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@51730 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvmc2/CompilationGraph.h b/tools/llvmc2/CompilationGraph.h
index 6b2b290..41731a3 100644
--- a/tools/llvmc2/CompilationGraph.h
+++ b/tools/llvmc2/CompilationGraph.h
@@ -16,13 +16,13 @@
 
 #include "AutoGenerated.h"
 #include "Tool.h"
-#include "StringSet.h"
 
 #include "llvm/ADT/GraphTraits.h"
 #include "llvm/ADT/IntrusiveRefCntPtr.h"
 #include "llvm/ADT/iterator.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/ADT/StringMap.h"
+#include "llvm/ADT/StringSet.h"
 #include "llvm/System/Path.h"
 
 #include <cassert>
@@ -30,7 +30,7 @@
 
 namespace llvmc {
 
-  typedef StringSet<> InputLanguagesSet;
+  typedef llvm::StringSet<> InputLanguagesSet;
 
   /// Edge - Represents an edge of the compilation graph.
   class Edge : public llvm::RefCountedBaseVPTR<Edge> {