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1// RUN: %clang_cc1 -verify -Wno-objc-root-class %s2 3@interface XX4 5- (void)addObserver:(XX*)o; // expected-note 2{{passing argument to parameter 'o' here}}6 7@end8 9@interface YY10 11+ (void)classMethod;12 13@end14 15@implementation YY16 17static XX *obj;18 19+ (void)classMethod {20 [obj addObserver:self]; // expected-error {{incompatible pointer types sending 'Class' to parameter of type 'XX *'}}21 Class whatever;22 [obj addObserver:whatever]; // expected-error {{incompatible pointer types sending 'Class' to parameter of type 'XX *'}}23}24@end25