[C++11] Use 'nullptr'.

llvm-svn: 210442
diff --git a/llvm/unittests/Analysis/ScalarEvolutionTest.cpp b/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
index 398d09e..90f6997 100644
--- a/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
+++ b/llvm/unittests/Analysis/ScalarEvolutionTest.cpp
@@ -41,7 +41,7 @@
                                               std::vector<Type *>(), false);
   Function *F = cast<Function>(M.getOrInsertFunction("f", FTy));
   BasicBlock *BB = BasicBlock::Create(Context, "entry", F);
-  ReturnInst::Create(Context, 0, BB);
+  ReturnInst::Create(Context, nullptr, BB);
 
   Type *Ty = Type::getInt1Ty(Context);
   Constant *Init = Constant::getNullValue(Ty);
@@ -94,7 +94,7 @@
   FunctionType *FTy = FunctionType::get(Type::getVoidTy(Context), Types, false);
   Function *F = cast<Function>(M.getOrInsertFunction("f", FTy));
   BasicBlock *BB = BasicBlock::Create(Context, "entry", F);
-  ReturnInst::Create(Context, 0, BB);
+  ReturnInst::Create(Context, nullptr, BB);
 
   // Create a ScalarEvolution and "run" it so that it gets initialized.
   PM.add(&SE);