Fixed build error.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@128470 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/examples/clang-interpreter/main.cpp b/examples/clang-interpreter/main.cpp
index a99766f..ad39ece 100644
--- a/examples/clang-interpreter/main.cpp
+++ b/examples/clang-interpreter/main.cpp
@@ -85,8 +85,7 @@
   // (basically, exactly one input, and the operation mode is hard wired).
   llvm::SmallVector<const char *, 16> Args(argv, argv + argc);
   Args.push_back("-fsyntax-only");
-  llvm::OwningPtr<Compilation> C(TheDriver.BuildCompilation(Args.size(),
-                                                            Args.data()));
+  llvm::OwningPtr<Compilation> C(TheDriver.BuildCompilation(Args));
   if (!C)
     return 0;