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1// RUN: %clang_cc1 -fobjc-arc -fsyntax-only -Woverriding-method-mismatch %s -verify2 3__attribute__((objc_root_class))4@interface NSFoo5@end6 7// ARC qualifiers stacked with nullability.8void accepts_arc_qualified(NSFoo * __unsafe_unretained _Nonnull obj) {9 accepts_arc_qualified(0); // expected-warning{{null passed to a callee that requires a non-null argument}}10}11