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

llvm-svn: 113301
diff --git a/clang/test/Preprocessor/objc-pp.m b/clang/test/Preprocessor/objc-pp.m
index 3e09325..0ec288c 100644
--- a/clang/test/Preprocessor/objc-pp.m
+++ b/clang/test/Preprocessor/objc-pp.m
@@ -1,4 +1,4 @@
-// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic
+// RUN: %clang_cc1 %s -fsyntax-only -verify -pedantic -ffreestanding
 
 #import <stdint.h>  // no warning on #import in objc mode.