Fix thinko.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@75061 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 2f25b77..826c64f 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -1654,7 +1654,7 @@
         else {
           // Create MDNode forward reference
           SmallVector<Value *, 1> Elts;
-          std::string FwdRefName = "llvm.mdnode.fwdref." + MID;
+          std::string FwdRefName = "llvm.mdnode.fwdref." + utostr(MID);
           Elts.push_back(Context.getMDString(FwdRefName));
           MDNode *FwdNode = Context.getMDNode(Elts.data(), Elts.size());
           ForwardRefMDNodes[MID] = std::make_pair(FwdNode, Lex.getLoc());