plug another leak in LLParser::PerFunctionState::SetInstName()

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@80792 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/AsmParser/LLParser.cpp b/lib/AsmParser/LLParser.cpp
index 3d2e312..3ef4aaf 100644
--- a/lib/AsmParser/LLParser.cpp
+++ b/lib/AsmParser/LLParser.cpp
@@ -1686,6 +1686,7 @@
         return P.Error(NameLoc, "instruction forward referenced with type '" + 
                        FI->second.first->getType()->getDescription() + "'");
       FI->second.first->replaceAllUsesWith(Inst);
+      delete FI->second.first;
       ForwardRefValIDs.erase(FI);
     }