tests: Use -ffreestanding when including stdint.h, to avoid platform dependencies.

llvm-svn: 113301
diff --git a/clang/test/SemaCXX/nullptr.cpp b/clang/test/SemaCXX/nullptr.cpp
index a3aab7f..0652062 100644
--- a/clang/test/SemaCXX/nullptr.cpp
+++ b/clang/test/SemaCXX/nullptr.cpp
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x %s
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++0x -ffreestanding %s
 #include <stdint.h>
 
 // Don't have decltype yet.