--- /dev/null
+++ dyld/dyld-852/testing/kernel-cache-tests/kernel-vtable-patching/foo.h
@@ -0,0 +1,21 @@
+
+#include <Kernel/libkern/c++/OSMetaClass.h>
+#include <Kernel/libkern/c++/OSObject.h>
+
+class Foo : public OSObject
+{
+    OSDeclareDefaultStructors( Foo )
+    
+public:
+    virtual int foo();
+    
+#ifdef FOO_USED
+    OSMetaClassDeclareReservedUsed(Foo, 0);
+    virtual int fooUsed0();
+#else
+    OSMetaClassDeclareReservedUnused(Foo, 0);
+#endif
+    OSMetaClassDeclareReservedUnused(Foo, 1);
+    OSMetaClassDeclareReservedUnused(Foo, 2);
+    OSMetaClassDeclareReservedUnused(Foo, 3);
+};