fix utostr


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@28597 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/llvm2cpp/CppWriter.cpp b/tools/llvm2cpp/CppWriter.cpp
index a188acb..b5f3945 100644
--- a/tools/llvm2cpp/CppWriter.cpp
+++ b/tools/llvm2cpp/CppWriter.cpp
@@ -75,7 +75,7 @@
   const char* progname;
   std::ostream &Out;
   const Module *TheModule;
-  unsigned long uniqueNum;
+  uint64_t uniqueNum;
   TypeMap TypeNames;
   ValueMap ValueNames;
   TypeMap UnresolvedTypes;