Inhibit ObjC format warning only in system headers (NSLocalizedString).
Add a test case for the related NSAssert workaround.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@156205 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/SemaObjC/format-strings-system.h b/test/SemaObjC/format-strings-system.h
new file mode 100644
index 0000000..73b7768
--- /dev/null
+++ b/test/SemaObjC/format-strings-system.h
@@ -0,0 +1,10 @@
+
+#pragma clang system_header
+
+@class NSString;
+
+// Do not emit warnings when using NSLocalizedString
+extern NSString *GetLocalizedString(NSString *str);
+#define NSLocalizedString(key) GetLocalizedString(key)
+
+#define NSAssert(fmt, arg) NSLog(fmt, arg, 0, 0)