|  | // Simply marking this as "#pragma clang system_header" didn't tickle the bug, rdar://problem/21134250.
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							|  | 
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							|  | void system1(int *ptr);
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							|  | #if WARN_IN_SYSTEM_HEADERS
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							|  | // expected-warning@-2{{pointer is missing a nullability type specifier}}
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							|  | #endif
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							|  | 
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							|  | void system2(int * _Nonnull);
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