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1// RUN: %clang_cc1 -triple x86_64-apple-macosx -fsyntax-only -verify -x objective-c++ %s -o /dev/null2// REQUIRES: asserts3 4struct objc_class {5 unsigned long long bits;6};7typedef struct objc_class *Class;8static void f(Class c) { (void)(c->bits & RW_HAS_OVERFLOW_REFCOUNT); }9// expected-error@-1{{use of undeclared identifier 'RW_HAS_OVERFLOW_REFCOUNT}}10