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      1 // RUN: %clang_cc1  -Woverriding-method-mismatch -fsyntax-only -verify -Wno-objc-root-class %s
      2 // rdar://9352731
      3 
      4 @protocol Bar 
      5 @required
      6 - (bycopy id)bud; // expected-note {{previous declaration is here}}
      7 - (unsigned char) baz; // expected-note {{previous declaration is here}}
      8 - (char) ok;
      9 - (void) also_ok;
     10 @end
     11 
     12 @protocol Bar1 
     13 @required
     14 - (unsigned char) baz; // expected-note {{previous declaration is here}}
     15 - (unsigned char) also_ok; // expected-note {{previous declaration is here}}
     16 - (void) ban : (int) arg, ...; // expected-note {{previous declaration is here}}
     17 @end
     18 
     19 @protocol Baz <Bar, Bar1>
     20 - (void) bar : (unsigned char)arg; // expected-note {{previous declaration is here}}
     21 - (void) ok;
     22 - (char) bak; // expected-note {{previous declaration is here}}
     23 @end
     24 
     25 @interface Foo <Baz>
     26 - (id)bud; // expected-warning {{conflicting distributed object modifiers on return type in declaration of 'bud'}}
     27 - (void) baz; // expected-warning 2 {{conflicting return type in declaration of 'baz': 'unsigned char' vs 'void'}}
     28 - (void) bar : (unsigned char*)arg; // expected-warning {{conflicting parameter types in declaration of 'bar:': 'unsigned char' vs 'unsigned char *'}}
     29 - (void) ok;
     30 - (void) also_ok; // expected-warning {{conflicting return type in declaration of 'also_ok': 'unsigned char' vs 'void'}}
     31 - (void) still_ok;
     32 - (void) ban : (int) arg; // expected-warning {{conflicting variadic declaration of method and its implementation}}
     33 @end
     34 
     35 @interface Foo()
     36 - (void) bak;
     37 @end
     38 
     39 @implementation Foo
     40 - (bycopy id)bud { return 0; }
     41 - (void) baz {}
     42 - (void) bar : (unsigned char*)arg {}
     43 - (void) ok {}
     44 - (void) also_ok {}
     45 - (void) still_ok {}
     46 - (void) ban : (int) arg {}
     47 - (void) bak {} // expected-warning {{conflicting return type in declaration of 'bak': 'char' vs 'void'}}
     48 @end
     49