Linker: Remove implicit ilist iterator conversion, NFC

llvm-svn: 250748
diff --git a/llvm/lib/Linker/LinkModules.cpp b/llvm/lib/Linker/LinkModules.cpp
index 27fdef4..94b12aa 100644
--- a/llvm/lib/Linker/LinkModules.cpp
+++ b/llvm/lib/Linker/LinkModules.cpp
@@ -1219,7 +1219,7 @@
     DI->setName(Arg.getName());  // Copy the name over.
 
     // Add a mapping to our mapping.
-    ValueMap[&Arg] = DI;
+    ValueMap[&Arg] = &*DI;
     ++DI;
   }