Add a missing call to MDNode::deleteTemporary().
Follow-up to r259975. Kudos to the ASAN bots!


git-svn-id: 91177308-0d34-0410-b5e6-96231b3b80d8
(cherry picked from commit 4404328870f6e3758e5d4d357442b39298f4e8f7)
diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index d0f900b..266cd0c 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -2043,19 +2043,20 @@
     // It is possible for enums to be created as part of their own
     // declcontext. We need to cache a placeholder to avoid the type being
     // created twice before hitting the cache.
-    llvm::DIScope *EDContext = DBuilder.createReplaceableCompositeType(
+    llvm::DIScope *TmpContext = DBuilder.createReplaceableCompositeType(
       llvm::dwarf::DW_TAG_enumeration_type, "", TheCU, DefUnit, 0);
     unsigned Line = getLineNumber(ED->getLocation());
     StringRef EDName = ED->getName();
     llvm::DIType *RetTy = DBuilder.createReplaceableCompositeType(
-        llvm::dwarf::DW_TAG_enumeration_type, EDName, EDContext, DefUnit, Line,
+        llvm::dwarf::DW_TAG_enumeration_type, EDName, TmpContext, DefUnit, Line,
         0, Size, Align, llvm::DINode::FlagFwdDecl, FullName);
     // Cache the enum type so it is available when building the declcontext
     // and replace the declcontect with the real thing.
-    EDContext->replaceAllUsesWith(getDeclContextDescriptor(ED));
+    TmpContext->replaceAllUsesWith(getDeclContextDescriptor(ED));
+    llvm::MDNode::deleteTemporary(TmpContext);
         std::piecewise_construct, std::make_tuple(Ty),