[opaque pointer type] update for LLVM API change

llvm-svn: 236161
diff --git a/clang/lib/CodeGen/CodeGenModule.cpp b/clang/lib/CodeGen/CodeGenModule.cpp
index c517d17..4bd67e0 100644
--- a/clang/lib/CodeGen/CodeGenModule.cpp
+++ b/clang/lib/CodeGen/CodeGenModule.cpp
@@ -2523,7 +2523,7 @@
 
   // Create the new alias itself, but don't set a name yet.
   auto *GA = llvm::GlobalAlias::create(
-      cast<llvm::PointerType>(Aliasee->getType())->getElementType(), 0,
+      cast<llvm::PointerType>(Aliasee->getType()),
       llvm::Function::ExternalLinkage, "", Aliasee, &getModule());
 
   if (Entry) {