Make constants immortal

Author: drexin

CoreFoundation/Base.subproj/CFBase.h

@@ -686,7 +686,11 @@ CFTypeRef CFMakeCollectable(CFTypeRef cf) CF_AUTOMATED_REFCOUNT_UNAVAILABLE;
 
 #if DEPLOYMENT_RUNTIME_SWIFT
 
-#define _CF_SWIFT_RC_PINNED_FLAG (0x1)
+#if TARGET_RT_64_BIT
+#define _CF_SWIFT_RC_PINNED_FLAG (0x80000004ffffffff)
+#else
+#define _CF_SWIFT_RC_PINNED_FLAG (0x800004FF)
+#endif
 #define _CF_CONSTANT_OBJECT_STRONG_RC ((uintptr_t)_CF_SWIFT_RC_PINNED_FLAG)
 #endif