Revert "Turn some C-style vararg into variadic templates"

This reverts commit r299699, the examples needs to be updated.

llvm-svn: 299702
diff --git a/llvm/lib/CodeGen/SjLjEHPrepare.cpp b/llvm/lib/CodeGen/SjLjEHPrepare.cpp
index bf6fdff..76e4dc5 100644
--- a/llvm/lib/CodeGen/SjLjEHPrepare.cpp
+++ b/llvm/lib/CodeGen/SjLjEHPrepare.cpp
@@ -480,12 +480,12 @@
 
 bool SjLjEHPrepare::runOnFunction(Function &F) {
   Module &M = *F.getParent();
-  RegisterFn = M.getOrInsertFunction("_Unwind_SjLj_Register",
-                                     Type::getVoidTy(M.getContext()),
-                                     PointerType::getUnqual(FunctionContextTy));
+  RegisterFn = M.getOrInsertFunction(
+      "_Unwind_SjLj_Register", Type::getVoidTy(M.getContext()),
+      PointerType::getUnqual(FunctionContextTy), nullptr);
   UnregisterFn = M.getOrInsertFunction(
       "_Unwind_SjLj_Unregister", Type::getVoidTy(M.getContext()),
-      PointerType::getUnqual(FunctionContextTy));
+      PointerType::getUnqual(FunctionContextTy), nullptr);
   FrameAddrFn = Intrinsic::getDeclaration(&M, Intrinsic::frameaddress);
   StackAddrFn = Intrinsic::getDeclaration(&M, Intrinsic::stacksave);
   StackRestoreFn = Intrinsic::getDeclaration(&M, Intrinsic::stackrestore);